Registration Dossier

Identification

Chemical structure
Display Name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Type of substance

Composition:
mono-constituent substance
Origin:
inorganic

Total tonnage band

Total range:
1 000 000+ tonnes per annum

REACH

Registered as:
FULL
Submitted:
Joint Submission

Publication dates

First published:
28-Oct-2009
Last modified:
05-Aug-2020

Chemical safety assessment

Performed for this substance:
YES

Compositions open all close all

Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
boundary composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes
Range:
>= 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 100 nm
Percentile:
D50
Range:
>= 1 - <= 100 nm
Percentile:
D90
Range:
>= 1 - <= 100 nm
Range of length:
>= 1 - <= 100 nm
Range of lateral dimension 1:
>= 1 - <= 100 nm
Range of lateral dimension 2:
>= 1 - <= 100 nm
Range of aspect ratio (:1):
>= 1 - <= 1
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Range:
> 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 4 - <= 1 000 m²/g
Range of volume specific surface area:
>= 8.8 - <= 2 200 m²/cm³
Skeletal density:
>= 1.7 - <= 2.25 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
ca. 99.9 %
Range:
>= 99.9 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
>= 750 - <= 850 nm
Percentile:
D50
Range:
>= 300 - <= 400 nm
Percentile:
D10
Range:
>= 150 - <= 200 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 0 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Typical composition:
>= 99.9 %
Range:
>= 99.9 - <= 100 %

Specific surface area

Range of specific surface area:
>= 150 - <= 300 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
ca. 94.41 %
Range:
ca. 85 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 2.48 nm
Range:
>= 3.19 - <= 49.3 nm
Percentile:
D50
Typical value:
ca. 3.69 nm
Range:
>= 3.69 - <= 61.8 nm
Percentile:
D90
Typical value:
ca. 6.01 nm
Range:
>= 6.01 - <= 80.6 nm
Percentile:
D95
Typical value:
ca. 6.84 nm
Range:
>= 6.84 - <= 87.7 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 90 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Silicon dioxide
Pure structure:
yes
Typical composition:
<= 0.3 %
Range:
>= 0 - <= 0.3 %

Specific surface area

Typical specific surface area:
ca. 788 m²/g
Range of specific surface area:
>= 29.8 - <= 846.5 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes
Range:
>= 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
>= 5 - <= 67.6 nm
Percentile:
D50
Range:
>= 5 - <= 40 nm
Percentile:
D10
Range:
>= 1 - <= 27.8 nm
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Range:
> 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 4 - <= 1 000 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
ca. 94.41 %
Range:
ca. 85 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D95
Typical value:
ca. 6.84 nm
Range:
>= 6.84 - <= 87.7 nm
Percentile:
D90
Typical value:
ca. 6.01 nm
Range:
>= 6.01 - <= 80.6 nm
Percentile:
D50
Typical value:
ca. 3.69 nm
Range:
>= 3.69 - <= 61.8 nm
Percentile:
D10
Typical value:
ca. 2.48 nm
Range:
>= 3.19 - <= 49.3 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 90 - <= 100 %

Crystallinity

Structures
Structure:
crystalline
Name:
Silicon dioxide
Pure structure:
yes
Typical composition:
<= 0.3 %
Range:
> 0 - < 0.3 %

Specific surface area

Typical specific surface area:
ca. 788 m²/g
Range of specific surface area:
>= 29.8 - <= 846.5 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
>= 12.7 - <= 24 nm
Percentile:
D50
Range:
>= 9.4 - <= 16 nm
Percentile:
D10
Range:
>= 7.4 - <= 9 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 75 - <= 420 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Specific surface area

Range of specific surface area:
>= 50 - <= 400 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 100 nm
Percentile:
D50
Range:
>= 1 - <= 100 nm
Percentile:
D90
Range:
>= 1 - <= 100 nm
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
amorphous
Pure structure:
yes
Range:
> 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
> 500 - <= 1 000 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
>= 12.7 - <= 31 nm
Percentile:
D50
Typical value:
ca. 9 nm
Range:
>= 3 - <= 29 nm
Percentile:
D10
Range:
>= 7.4 - <= 11 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 50 - <= 450 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: potato like
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 12 - <= 42 nm
Percentile:
D50
Range:
>= 15 - <= 57 nm
Percentile:
D90
Range:
>= 21 - <= 89 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99.9 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes

Specific surface area

Typical specific surface area:
>= 200 m²/g
Range of specific surface area:
>= 85 - <= 298 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: potato shape
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 7 - <= 50 nm
Percentile:
D50
Range:
>= 9 - <= 67 nm
Percentile:
D90
Range:
>= 13 - <= 100 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99.9 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes

Specific surface area

Typical specific surface area:
ca. 200 m²/g
Range of specific surface area:
>= 79 - <= 523 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
<= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
4.8 nm
Range:
> 1.4 - < 8.2 nm
Percentile:
D50
Typical value:
7.9 nm
Range:
> 4.5 - < 11.3 nm
Percentile:
D90
Typical value:
13.1 nm
Range:
> 9.7 - < 16.5 nm
Typical aspect ratio (:1):
1.3 :1
Range of aspect ratio (:1):
1.1 - 1.7
Fraction of constituent particles in the size range 1-100 nm:
>= 99 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Typical composition:
ca. 100 %

Specific surface area

Typical specific surface area:
237 m²/g
Range of specific surface area:
> 200 - < 300 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
boundary composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Specific surface area

Range of specific surface area:
>= 4 - <= 1 000 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Particle size distribution and range

Particle size distribution and range
Range of length:
>= 13.9 - <= 17.8 nm
Range of lateral dimension 1:
>= 13.9 - <= 17.8 nm
Range of lateral dimension 2:
>= 13.9 - <= 17.8 nm

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Particle size distribution and range

Particle size distribution and range
Range of length:
10 nm
Range of lateral dimension 1:
10 nm
Range of lateral dimension 2:
10 nm
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes
Typical composition:
> 99 %
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 4 - <= 10 nm
Percentile:
D50
Range:
>= 10 - <= 20 nm
Percentile:
D90
Range:
> 12 - <= 30 nm
Range of length:
>= 1 - <= 100 nm
Range of lateral dimension 1:
>= 1 - <= 100 nm
Range of lateral dimension 2:
>= 1 - <= 100 nm
Typical aspect ratio (:1):
ca. 1 :1
Fraction of constituent particles in the size range 1-100 nm:
> 95 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
Amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 70 - <= 330 m²/g
Range of volume specific surface area:
>= 154 - <= 726 m²/cm³
Skeletal density:
ca. 2.2 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Particle size distribution and range

Particle size distribution and range
Range of length:
>= 7 - <= 20 nm
Range of lateral dimension 1:
>= 7 - <= 20 nm
Range of lateral dimension 2:
>= 7 - <= 20 nm

Specific surface area

Range of specific surface area:
>= 270 - <= 290 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 55 nm
Range:
>= 45 - <= 80 nm
Percentile:
D50
Typical value:
ca. 100 nm
Range:
>= 80 - <= 150 nm
Percentile:
D90
Typical value:
ca. 260 nm
Range:
>= 190 - <= 330 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 82 - <= 98 %

Crystallinity

Structures
Structure:
amorphous
Name:
synthetic amorphous silica
Pure structure:
yes

Specific surface area

Typical specific surface area:
ca. 160 m²/g
Range of specific surface area:
>= 85 - <= 235 m²/g
Typical volume specific surface area:
342 m²/cm³
Range of volume specific surface area:
>= 182 - <= 503 m²/cm³
Skeletal density:
ca. 2.14 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: potato shape
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 5 - < 51 nm
Percentile:
D50
Range:
>= 7 - < 69 nm
Percentile:
D90
Range:
>= 10 - <= 103 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 97 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes

Specific surface area

Typical specific surface area:
>= 200 m²/g
Range of specific surface area:
>= 79 - <= 523 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Surface treatments
Surface treatment name:
aluminusilicate modified
Surface treatmentopen allclose all
External layer:
hydrophilic
Percentage of coverage of particle surface, %:
>= 5 - <= 100
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
>= 99 %
Range:
>= 95 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Typical value:
73 nm
Range:
>= 69 - <= 76 nm
Percentile:
D10
Typical value:
34 nm
Range:
>= 29 - <= 39 nm
Percentile:
D50
Typical value:
55 nm
Range:
>= 47 - <= 59 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99.9 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
silica
Pure structure:
yes
Typical composition:
>= 99 %
Range:
>= 95 - <= 100 %

Specific surface area

Typical specific surface area:
143.8 m²/g
Range of specific surface area:
>= 136.5 - <= 152.4 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Aluminium oxide
EC Number:
215-691-6
EC Name:
Aluminium oxide
CAS Number:
1344-28-1
Molecular formula:
Al2O3
IUPAC Name:
Aluminium oxide
Constituent 2
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Specific surface area

Range of specific surface area:
>= 4 - <= 800 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Range:
>= 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 100 nm
Percentile:
D50
Range:
>= 1 - <= 100 nm
Percentile:
D90
Range:
>= 1 - <= 100 nm
Range of length:
>= 1 - <= 100 nm
Range of lateral dimension 1:
>= 1 - <= 100 nm
Range of lateral dimension 2:
>= 1 - <= 100 nm
Range of aspect ratio (:1):
>= 1 - <= 1
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
amorphous
Pure structure:
yes
Range:
> 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 4 - <= 800 m²/g
Range of volume specific surface area:
>= 8.8 - <= 2 200 m²/cm³
Skeletal density:
>= 1.7 - <= 2.25 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Particle size distribution and range

Particle size distribution and range
Range of length:
> 10 - < 30 nm

Specific surface area

Range of specific surface area:
154 m²/g
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Typical value:
ca. 14 nm
Range:
ca. 14 - ca. 14 nm
Percentile:
D50
Typical value:
ca. 12 nm
Range:
>= 9 - ca. 15 nm
Percentile:
D10
Typical value:
ca. 9 nm
Range:
ca. 9 - ca. 9 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 105 - <= 135 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
liquid


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Particle size distribution and range

Particle size distribution and range
Range of length:
>= 25 - <= 30 nm
Range of lateral dimension 1:
>= 25 - <= 30 nm
Range of lateral dimension 2:
>= 25 - <= 30 nm

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silica, amorphous, pyrogenic, crystalline-free
CAS Number:
112945-52-5
Molecular formula:
O2Si
IUPAC Name:
Silica, amorphous, pyrogenic, crystalline-free
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes
Typical composition:
> 99 %
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 4 - <= 10 nm
Percentile:
D50
Range:
>= 10 - <= 25 nm
Percentile:
D90
Range:
> 12 - <= 35 nm
Range of length:
>= 1 - <= 100 nm
Range of lateral dimension 1:
>= 1 - <= 100 nm
Range of lateral dimension 2:
>= 1 - <= 100 nm
Typical aspect ratio (:1):
ca. 1 :1
Fraction of constituent particles in the size range 1-100 nm:
> 95 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
Amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 44 - <= 330 m²/g
Range of volume specific surface area:
>= 96.8 - <= 726 m²/cm³
Skeletal density:
ca. 2.2 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: open cellular network
Pure shape:
yes
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
>= 2 - <= 2.5 nm
Percentile:
D50
Range:
>= 1.5 - < 1.75 nm
Percentile:
D10
Range:
>= 1 - <= 1.5 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - < 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Typical composition:
> 99.7 %

Specific surface area

Range of specific surface area:
>= 630 - <= 760 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Specific surface area

Range of specific surface area:
ca. 295 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance
State Form:
other: solid; amorphous shards


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 100 nm
Percentile:
D50
Range:
> 1 - <= 100 nm
Percentile:
D90
Range:
> 1 - <= 100 nm
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
amorphous
Pure structure:
yes
Range:
> 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 50 - <= 650 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Specific surface area

Range of specific surface area:
>= 4 - <= 800 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Surface treatments
Surface treatment name:
synthetic amorphous silicon dioxide, nanomaterial, silanized
Surface treatmentopen allclose all
External layer:
hydrophobic
Percentage of coverage of particle surface, %:
>= 90 - < 100
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
<= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
1.9 nm
Range:
> 1 - < 3.8 nm
Percentile:
D50
Typical value:
3.5 nm
Range:
> 1.8 - < 5.2 nm
Percentile:
D90
Typical value:
6.2 nm
Range:
> 4.5 - < 7.9 nm
Typical aspect ratio (:1):
1.3 :1
Fraction of constituent particles in the size range 1-100 nm:
>= 99 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Typical composition:
ca. 100 %

Specific surface area

Typical specific surface area:
395 m²/g
Range of specific surface area:
> 300 - < 500 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: potato shape
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 8 - <= 38 nm
Percentile:
D50
Range:
>= 10 - <= 54 nm
Percentile:
D90
Range:
>= 15 - <= 82 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99.9 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes

Specific surface area

Typical specific surface area:
>= 200 m²/g
Range of specific surface area:
>= 104 - <= 906 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Surface treatments
Surface treatment name:
aluminusilicate modified
Surface treatmentopen allclose all
External layer:
hydrophilic
Percentage of coverage of particle surface, %:
>= 5 - <= 100
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Typical composition:
<= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
ca. 13.7 nm
Range:
> 7 - < 20 nm
Percentile:
D50
Typical value:
ca. 20 nm
Range:
> 13 - < 27 nm
Percentile:
D90
Typical value:
ca. 31.6 nm
Range:
> 25 - < 38 nm
Typical aspect ratio (:1):
1.3 :1
Fraction of constituent particles in the size range 1-100 nm:
>= 99 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes

Specific surface area

Typical specific surface area:
ca. 148 m²/g
Range of specific surface area:
> 100 - < 200 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
other: solid


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: potato shape
Pure shape:
yes

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 7 - <= 47 nm
Percentile:
D50
Range:
>= 9 - <= 63 nm
Percentile:
D90
Range:
>= 13 - <= 100 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 99.9 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes

Specific surface area

Typical specific surface area:
ca. 200 m²/g
Range of specific surface area:
>= 40 - <= 523 m²/g

Surface functionalisation / treatment

Surface treatment applied:
yes
Does the set contain both treated and non-surface treated nanoforms?:
no
Surface treatments
Surface treatment name:
silane derivatization
Surface treatmentopen allclose all
External layer:
hydrophilic
Percentage of coverage of particle surface, %:
>= 55 - <= 90
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
other: amorphous


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
spherical
Pure shape:
yes
Range:
> 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D90
Range:
>= 12.7 - <= 31 nm
Percentile:
D50
Typical value:
ca. 9 nm
Range:
>= 3 - <= 29 nm
Percentile:
D10
Range:
>= 7.4 - <= 11 nm
Fraction of constituent particles in the size range 1-100 nm:
>= 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Pure structure:
yes
Range:
>= 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 50 - <= 430 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Does the set contain both treated and non-surface treated nanoforms?:
no
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: particulate/powder


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
legal entity composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
single nanoform

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes
Typical composition:
100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Typical value:
12.7 nm
Range:
>= 1 - <= 15 nm
Percentile:
D50
Typical value:
16.5 nm
Range:
>= 13 - <= 18 nm
Percentile:
D90
Typical value:
20.1
Range:
>= 17 - <= 25 nm
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
amorphous
Pure structure:
yes
Typical composition:
> 99.7 %
Range:
> 99.7 - <= 100 %

Specific surface area

Typical specific surface area:
141.68 m²/g
Range of specific surface area:
>= 100 - <= 200 m²/g

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
boundary composition of the substance
State Form:
solid: bulk


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide
Type:
boundary composition of the substance
State Form:
solid: nanoform


Constituent 1
Chemical structure
Reference substance name:
Silicon dioxide
EC Number:
231-545-4
EC Name:
Silicon dioxide
CAS Number:
7631-86-9
Molecular formula:
O2Si
IUPAC Name:
Silicon dioxide

Characterisation of nanoforms

Type of information reported:
set of nanoforms
Cross-reference
Reason / purpose:
justification for reporting set of similar nanoforms

Shape

Shape description
Shape category:
spheroidal
Shape:
other: 3-dimensional branched fractal aggregates
Pure shape:
yes
Range:
>= 99 - <= 100 %

Particle size distribution and range

Particle size distribution and range
Shape category:
spheroidal
Percentileopen allclose all
Percentile:
D10
Range:
>= 1 - <= 100 nm
Percentile:
D50
Range:
>= 1 - <= 100 nm
Percentile:
D90
Range:
>= 1 - <= 100 nm
Range of length:
>= 1 - <= 100 nm
Range of lateral dimension 1:
>= 1 - <= 100 nm
Range of lateral dimension 2:
>= 1 - <= 100 nm
Range of aspect ratio (:1):
>= 1 - <= 1
Fraction of constituent particles in the size range 1-100 nm:
> 50 - <= 100 %

Crystallinity

Structures
Structure:
amorphous
Name:
amorphous
Pure structure:
yes
Range:
> 99.7 - <= 100 %

Specific surface area

Range of specific surface area:
>= 4 - <= 1 000 m²/g
Range of volume specific surface area:
>= 8.8 - <= 2 200 m²/cm³
Skeletal density:
>= 1.7 - <= 2.25 g/cm³

Surface functionalisation / treatment

Surface treatment applied:
no
Type:
legal entity composition of the substance


Constituent 1