Registration Dossier
Registration Dossier
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EC number: 700-093-4 | CAS number: 176969-34-9
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
- EC Number:
- 700-093-4
- Cas Number:
- 176969-34-9
- Molecular formula:
- C6H6F2N2O2
- IUPAC Name:
- 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 10.7 µm
- Remarks on result:
- other: St. dev. not reported
- Percentile:
- D50
- Mean:
- 35.6 µm
- Remarks on result:
- other: St. dev. not reported
- Percentile:
- D90
- Mean:
- 78.5 µm
- Remarks on result:
- other: St. dev. not reported
Any other information on results incl. tables
The median particle size L50 (D (v, 0.5): 50 % of particle volume with lower particle diameter) deduced from these distributions were:
1st test series: L50 = 35.1 µm
2nd test series: L50 = 36.0 µm
The average of the median particle size L50 was:
L50 35.6 µm
The particle size L10 (D (v, O. 1): 10 % of particle volume with lower particle diameter) deduced from these distributions were:
1st test series: L10 = 10.5 µm
2nd test series: L10 = 10.8 µm
The average of the particle size L10 was:
L10 = 10.7 µm
The particle size L90 (D (v, 0.9): 90 % of particle volume with lower particle diameter) deduced from these distributions were:
1st test series: L90 = 77.6 µm
2nd test series: L90 = 79.5 µm
The average of the particle size L90 was:
L90 = 78.5 µm
Two maxima were observed at approximately 1-2 µm and approximately 40 µm.
Applicant's summary and conclusion
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