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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Nov 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Qualifier:
equivalent or similar to guideline
Guideline:
other: EN 481
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Butyl 4-hydroxybenzoate
EC Number:
202-318-7
EC Name:
Butyl 4-hydroxybenzoate
Cas Number:
94-26-8
Molecular formula:
C11H14O3
IUPAC Name:
butyl 4-hydroxybenzoate

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
28.5 µm
St. dev.:
0.9
Percentile:
D50
Mean:
114.8 µm
St. dev.:
2.4
Percentile:
D90
Mean:
332.9 µm
St. dev.:
16.4
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
< 1 µm
Distribution:
0 other: vol%
No.:
#2
Size:
< 4 µm
Distribution:
0.3 other: vol%
No.:
#4
Size:
< 10 µm
Distribution:
2.1 other: vol%
No.:
#5
Size:
< 100 µm
Distribution:
44.1 other: vol%

Any other information on results incl. tables

Results

Parameter

Value

D10

28.5 ± 0.9 µm

D50

114.8 ± 2.4 µm

D90

332.9 ± 16.4 µm

< 1 µ

0 ± 0 vol %

< 4 µ

0.3 ± 0.1 vol %

< 10 µ

2.1 ± 0.2 vol %

< 100 µ

44.1± 0.9 vol %

 

Applicant's summary and conclusion