Registration Dossier
Registration Dossier
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EC number: 443-870-0 | CAS number: 163520-33-0
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- 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
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320-1
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 59
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 3.3 µm
- Remarks on result:
- other: standard deviation not reported
- Percentile:
- D50
- Mean:
- 13.4 µm
- Remarks on result:
- other: standard deviation not reported
- Percentile:
- D90
- Mean:
- 36.8 µm
- Remarks on result:
- other: standard deviation not reported
Reference
The test item consists of a fine crystalline structure with rod-shaped form.
The median particle size L50 (50% of particle volume with lower particle diameter) deduced form these distributions was:
1. test series: L50 = 13.42 µm
2. test series: L50 = 13.46 µm
The average of the median particle size L50 was 13.4 µm.
The median particle size L10 (10% of particle volume with lower particle diameter) deduced form these distributions was:
1. test series: L10 = 3.30 µm
2. test series: L10 = 3.32 µm
The average of the median particle size L10 was 3.3 µm.
The median particle size L90 (90% of particle volume with lower particle diameter) deduced form these distributions was:
1. test series: L90 = 37.07 µm
2. test series: L50 = 36.49 µm
The average of the median particle size L90 was 36.8 µm.
Description of key information
D10 (volume based): 3.3 µm
D50 (volume based): 13.4 µm (median particle size)
D90 (volume based): 36.8 µm
Additional information
Laser diffraction according to: OECD 110 (1981), CIPAC MT 187, IS013320-1, OCSPP 830.7520
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