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EC number: 278-133-0 | CAS number: 75214-65-2
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
- Study period:
- December 07th, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Version / remarks:
- 1981
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- 2009
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187 (Particle Size Analysis by Laser Diffraction)
- Version / remarks:
- 2009
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 7.9 µm
- St. dev.:
- 0.21
- Percentile:
- D50
- Mean:
- 35.8 µm
- St. dev.:
- 0.57
- Percentile:
- D90
- Mean:
- 97.2 µm
- St. dev.:
- 1.77
- Conclusions:
- D50: 35.8 ± 0.57 µm
- Executive summary:
The particle size distribution was determined using laser diffraction. As measuring device, a Malvern Mastersizer 2000 was used. The powder was brought via a powder dispersing cell Scirocco 2000 into the laser light beam and the diffraction pattern was determined. From the diffraction pattern the particle size distribution was calculated.
Two test series of 3 measurements each were performed with test item.
The average D10 resulted to be 7.9 µm; D50 resulted to be 35.8 µm; D90 resulted to be 97.2 µm.
Conclusion
D50: 35.8 ± 0.57 µm
Reference
| Particle size (µm) | |||
| D10 | D50 | D90 | |
| Test series 1 | 8.1 | 36.2 | 98.4 |
| Test series 2 | 7.8 | 35.4 | 95.9 |
Average |
7.9 | 35.8 | 97.2 |
SD |
0.21 | 0.57 | 1.77 |
Description of key information
D50: 35.8 ± 0.57 µm
Additional information
ISO 13320 - Laser scattering/diffraction
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