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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
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 guideline
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
3-methyl-1-phenyl-5-pyrazolone
EC Number:
201-891-0
EC Name:
3-methyl-1-phenyl-5-pyrazolone
Cas Number:
89-25-8
Molecular formula:
C10H10N2O
IUPAC Name:
5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one

Results and discussion

Geometric standard deviation:
>= 2.9 - <= 14.5
Remarks on result:
other: geometric std deviation expressed as a %
Particle sizeopen allclose all
Key result
Percentile:
D10
Mean:
2.2 µm
St. dev.:
3.32
Remarks on result:
other: relative std deviation (%)
Key result
Percentile:
D50
Mean:
15.7 µm
St. dev.:
1.99
Remarks on result:
other: relative std deviation (%)
Key result
Percentile:
D90
Mean:
74.1 µm
St. dev.:
0.92
Remarks on result:
other: relative std deviation (%)

Applicant's summary and conclusion

Conclusions:
The particle size distribution of Pyrazole was determined by laser diffraction and the mean volume weighted size distribution values were: D10 = 2.2 µm, D50 = 15.7 µm, D90 = 74.1 µm.