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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

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