Registration Dossier
Registration Dossier
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Reaction mass of Cobaltate(2-), [2-[[[4-hydroxy-3-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl]sulfonyl]amino]benzoato(3-)][2-[[2-hydroxy-5-[(phenylamino)sulfonyl]phenyl]azo]-3-oxo-N-phenylbutanamidato(2-)]-, disodium and Cobaltate(3-), bis[2-[[[4-hydroxy-3-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]phenyl]sulfonyl]amino]benzoato(3-)]-, trisodium and sodium bis[2-[[2-hydroxy-5-[(phenylamino)sulphonyl]phenyl]azo]-3-oxo-N-phenylbutyramidato(2-)]cobaltate(1-)
EC number: 947-257-3 | CAS number: -
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 the 12th, 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:
- 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:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 8 µm
- St. dev.:
- 0.42
- Percentile:
- D50
- Mean:
- 36.4 µm
- St. dev.:
- 1.06
- Percentile:
- D90
- Mean:
- 97 µm
- St. dev.:
- 2.33
- Conclusions:
- D50: 36.4 µm
- Executive summary:
The particle size distribution was determined using laser diffraction, according to the OECD 110, CIPAC MT 187 and ISO 13320 methods. 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. The particle size distribution was calculated on the basis of the diffraction pattern.
Two test series of 3 measurements each were performed with the test item.
The average D10 resulted to be 8.0 µm, D50 36.4 µm and D90 97.0 µm.
Conclusion
D50: 36.4 µm
Reference
| Particle size (µm) | |||
| D10 | D50 | D90 | |
| Test serie 1 | 7.7 | 35.6 |
95.3 |
Test serie 2 |
8.3 |
37.1 |
98.6 |
Average |
8.0 |
36.4 |
97.0 |
| SD | 0.42 | 1.06 | 2.33 |
Description of key information
D50: 36.4 µm
Additional information
OECD 110, CIPAC MT 187, ISO 13320 - Laser diffraction method.
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