Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 451-060-3 | CAS number: 122886-55-9
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:
- August 19, 2003 - September 23, 2003
- 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:
- other: NF ISO 2591-1:1989
- Qualifier:
- according to guideline
- Guideline:
- other: NFX 11-507 (1989)
- GLP compliance:
- no
- Remarks:
- (the laser diffraction part of the study was not performed following the GLP principles; the dry sieve part was)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 72.6 µm
- Percentile:
- D50
- Mean:
- 66.36 µm
- Remarks on result:
- other: Mean of 3 analyses
- Conclusions:
- In a study in accordance with OECD 110, ISO 2591-1 and NFX 11-507 using laser diffraction analysis, the particle size distribution of the substance was determined: 50% is < 66.4 µm. The MMAD is 72.6 µm.
Reference
Results of the analysis:
|
Experiment 1 |
Experiment 2 |
Experiment 3 |
Mean |
d50 |
74.78 µm |
67.22 µm |
57.08 µm |
66.36 µm |
Mean |
74.89 µm |
87.55 µm |
68.06 µm |
76.83 µm |
Calculated MMAD (mean): 72.6 µm
Description of key information
The particle size distribution of the substance was determined: 50% is < 66.4 µm. The MMAD is 72.6 µm.
Additional information
Determined in a study in accordance with OECD 110, ISO 2591-1 and NFX 11-507 using laser diffraction analysis.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
