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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
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report date:
2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Deviations:
no
GLP compliance:
yes
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle

Test material

Constituent 1
Chemical structure
Reference substance name:
1,7-bis(4-hydroxy-3-methoxyphenyl)heptane-3,5-dione
EC Number:
900-021-3
Molecular formula:
3,5-Heptanedione-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl) :C20 H22O5, 3,5-Heptanedione-1,7 -bis(4-hydroxyphenyl) : C19H20O4, 3,5-Heptanedione-1,7-bis(4-hydroxy-3-methoxyphenyl) : C21H24O6
IUPAC Name:
1,7-bis(4-hydroxy-3-methoxyphenyl)heptane-3,5-dione
Test material form:
solid: crystalline

Results and discussion

Particle size
Key result
Percentile:
D50
Mean:
>= 33.39 - <= 38.54 µm
Remarks on result:
other: Performed by Laser Diffraction Method

Applicant's summary and conclusion

Conclusions:
Particle size is 33.39 to 38.54µm and done as per Laser diffraction method (Microtrac S3500-Turbotrac)