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EC number: 278-127-8 | CAS number: 75214-58-3
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:
- February 12, 2018
- 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:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- 31 µm
- St. dev.:
- 1.06
- Conclusions:
- D50: 31 µm
- Executive summary:
The particle size distribution was determined using laser diffraction, according to the ISO 13320. 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 is determined. From the diffraction pattern the particle size distribution was calculated. The measurements were run in duplicate.
The average D90 was calculated to be 196.3 µm, the average D50 was calcualted to be 30.6 µm and the average D10 was calculated to be 5.6 µm.
Conclusion
D50: 31 µm
Reference
| Particle size (µm) | |||
| D10 | D50 | D90 | |
| Test serie 1 | 5.5 | 29.8 | 194.8 |
| Test serie 2 | 5.7 | 31.3 | 197.8 |
| Average | 5.6 | 30.6 | 196.3 |
| SD | 0.14 | 1.06 | 2.12 |
Description of key information
D50: 31 µm
Additional information
ISO 13320 and OECD 110 - Laser scattering/diffraction
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