Reaction mass of Silicic acid, calcium salt and Silicic acid, magnesium salt

Formulation

Documents

Water treatment

Formulation

Registration/ Notification status for the use:

use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant

Reference

Name:

Reaction mass of Silicic acid, magnesium salt and Silicic acid, calcium salt

Type of composition:

legal entity composition of the substance

State / form:

solid: nanoform

Reference substance:

Reaction mass of Silicic acid, magnesium salt and Silicic acid, calcium salt

Reference substance:

Reaction mass of Silicic acid, magnesium salt and Silicic acid, calcium salt

Type of information reported:

single nanoform

Shape category:

spheroidal

Remarks:

irregular spheroids

Shape:

spherical

Pure shape:

yes

Range:

>= 99 - <= 100 %

Shape category:

spheroidal

Remarks:

irregular spheroids

Percentile:

D10

Typical value:

ca. 1.6 nm

Range:

ca. 1 - ca. 2 nm

Percentile:

D50

Typical value:

ca. 5 nm

Range:

>= 3 - <= 7 nm

Percentile:

D90

Typical value:

ca. 12 nm

Range:

>= 7 - <= 20 nm

Additional information:

According to the histogram (TEM-analysis) the particle size of the CMS sample varies between 30 to 73 nm with the majority of the particles beeing between 30 to 45 nm. It should be mentioned that the image above is an example image of the CMS particles on the TEM grid, different parts of the same gird may have different particles and the particle size can vary between 30 to 100 nm.

Fraction of constituent particles in the size range 1-100 nm:

>= 10 - <= 20 %

Structure:

amorphous

Pure structure:

yes

Typical composition:

> 99 %

Range:

>= 99.7 - <= 100 %

Description:

Amorphous (< 0,3 % crystalline parts).
X-ray diffraction diagrams of CMS, show only a broad halo, revealing an X-ray amorphous structure.
The detection limit for crystallinity by X-ray is in the maximum order of 0.3% by weight or below.

Typical specific surface area:

325 m²/g

Range of specific surface area:

>= 200 - <= 500 m²/g

Typical volume specific surface area:

910 m²/cm³

Range of volume specific surface area:

>= 560 - <= 1 400 m²/cm³

Skeletal density:

2.8 g/cm³

Surface treatment applied:

no

Contributing activity / technique for the environment

Environmental release category (ERC):

ERC2: Formulation into mixture

Contributing activity / technique for workers

Process category (PROC):

PROC 5: Mixing or blending in batch processes

Product category formulated:

PC 2: Adsorbents

PC 20: Products such as ph-regulators, flocculants, precipitants, neutralisation agents

PC 37: Water treatment chemicals

Substance supplied to that use in form of:

as such

in a mixture

Chemicals and agrochemicals.

Formulation

Registration/ Notification status for the use:

use registered according to REACH Article 10; total tonnage manufactured/imported >=10tonnes/year per registrant

Reference

Name:

Reaction mass of Silicic acid, magnesium salt and Silicic acid, calcium salt

Type of composition:

legal entity composition of the substance

State / form:

solid: nanoform

Reference substance:

Reaction mass of Silicic acid, magnesium salt and Silicic acid, calcium salt

Reference substance:

Reaction mass of Silicic acid, magnesium salt and Silicic acid, calcium salt

Type of information reported:

single nanoform

Shape category:

spheroidal

Remarks:

irregular spheroids

Shape:

spherical

Pure shape:

yes

Range:

>= 99 - <= 100 %

Shape category:

spheroidal

Remarks:

irregular spheroids

Percentile:

D10

Typical value:

ca. 1.6 nm

Range:

ca. 1 - ca. 2 nm

Percentile:

D50

Typical value:

ca. 5 nm

Range:

>= 3 - <= 7 nm

Percentile:

D90

Typical value:

ca. 12 nm

Range:

>= 7 - <= 20 nm

Additional information:

According to the histogram (TEM-analysis) the particle size of the CMS sample varies between 30 to 73 nm with the majority of the particles beeing between 30 to 45 nm. It should be mentioned that the image above is an example image of the CMS particles on the TEM grid, different parts of the same gird may have different particles and the particle size can vary between 30 to 100 nm.

Fraction of constituent particles in the size range 1-100 nm:

>= 10 - <= 20 %

Structure:

amorphous

Pure structure:

yes

Typical composition:

> 99 %

Range:

>= 99.7 - <= 100 %

Description:

Amorphous (< 0,3 % crystalline parts).
X-ray diffraction diagrams of CMS, show only a broad halo, revealing an X-ray amorphous structure.
The detection limit for crystallinity by X-ray is in the maximum order of 0.3% by weight or below.

Typical specific surface area:

325 m²/g

Range of specific surface area:

>= 200 - <= 500 m²/g

Typical volume specific surface area:

910 m²/cm³

Range of volume specific surface area:

>= 560 - <= 1 400 m²/cm³

Skeletal density:

2.8 g/cm³

Surface treatment applied:

no

Contributing activity / technique for the environment

Environmental release category (ERC):

ERC2: Formulation into mixture

Contributing activity / technique for workers

Process category (PROC):

PROC 2: Chemical production or refinery in closed continuous process with occasional controlled exposure or processes with equivalent containment conditions

PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions

PROC 5: Mixing or blending in batch processes

PROC 14: Tabletting, compression, extrusion, pelletisation, granulation

Product category formulated:

PC 2: Adsorbents

PC 40: Extraction agents

PC 0: Other: Adhesion promotor, antiblocking agent, binding agent, catalyst, dewatering agent, driers, desiccative, filler, flame retardeant agent, flow modifier, preservative, process regulator or aid, surface active agent, structureagent, viscosity control agent.

Substance supplied to that use in form of:

as such

in a mixture