Registration Dossier
Registration Dossier
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EC number: 231-907-1 | CAS number: 7778-53-2
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:
- 2 July 2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Remarks:
- .
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Laser particle sizer Malvern with unit dry Scirocco 2000
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- counted distribution
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- No.:
- #1
- Size:
- < 104 µm
- Distribution:
- 53.71 %
- Conclusions:
- 53.71% of particles were found to be < 104.7 µm in diameter and as such the particle size distribution indicates tripotassium orthophosphate is an inhalation risk (a significant proportion of the particles are present at < 100 µm).
This study is considered to be acceptable for use as a key study under Regulation (EC) No. 1907/2006 (REACH).
Reference
Description of key information
One key study is available. This study is conducted according to an appropriate method and therefore the study is considered to be acceptable and to adequately satisfy the regulatory requirement as a key study for this endpoint.
Additional information
53.71% of particles were found to be < 104.7 µm in diameter and as such the particle size distribution indicates tripotassium orthophosphate is an inhalation risk (a significant proportion of the particles are present at < 100 µm).
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.
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