Registration Dossier
Registration Dossier
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EC number: 251-073-2 | CAS number: 32509-66-3
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:
- 2006
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The study was conducted according to an appropriate standard test protocol but full details are not available. Consequently, the reliability is with restrictions.
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The powder is dispersed with compressed air. A laser beam is shone through the sample. The intensity of light diffracted or scattered at various angles is used to determine the particle size distribution.
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 30.6 µm
- Percentile:
- D50
- Mean:
- 30.6 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- 3.4 µm
- Remarks on result:
- other: no St. dev. given
- Percentile:
- D50
- Mean:
- 30.6 µm
- Remarks on result:
- other: no St. dev. given
- Percentile:
- D90
- Mean:
- 175.2 µm
- Remarks on result:
- other: no St. dev. given
- Conclusions:
- The Mean Mass Median Aerodynamic Diameter was reported to be 30.6 µm and shows that the test substance consists mostly of particles with a particle size of <100µm. The result is considered to be reliable
Reference
Description of key information
MMAD: 30.6 µm
Additional information
A study report of a powder sample of the substance gives a mean mass median areodynamic diameter of 30.6 µm. The study shows that most of the test substance has a particle size <100µm. The result is considered to be reliable.
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.
