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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:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
2009
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC MT 187
Version / remarks:
2007
Deviations:
no
GLP compliance:
yes (incl. QA statement)
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:
2-acetyl-3-(4-hexadecoxyphenyl)-1,4-benzoquinone
EC Number:
947-565-8
Molecular formula:
C30 H42 O4
IUPAC Name:
2-acetyl-3-(4-hexadecoxyphenyl)-1,4-benzoquinone

Results and discussion

Mass median aerodynamic diameter:
118 µm
Geometric standard deviation:
4.875
Particle sizeopen allclose all
Percentile:
D10
Mean:
11.2 µm
St. dev.:
0.144
Percentile:
D50
Mean:
112 µm
St. dev.:
3.11
Percentile:
D90
Mean:
560 µm
St. dev.:
9.12

Applicant's summary and conclusion

Conclusions:
The results of the laser diffraction test conducted to determine the particle size of 3,4,5- Trimethoxycinnamic Acid are summarised below. The analysis was conducted using the small volume (wet) module (SVM) with water as the dispersant.

Volume weighted mean: 209 µm
Mode 418 µm
MMAD (mass median aerodynamic diameter) 118 µm
d10 - 10 % of material is < 11.2 µm
d50 - 50 % of material is < 112 µm
d90 - 90 % of material is < 560 µm
volume of sample < 10.00 μm 9.00 %