Registration Dossier
Registration Dossier
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EC number: 947-793-8 | CAS number: -
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- particle size distribution determined by mechanical shaking on a sieve tower
- GLP compliance:
- not specified
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
Test material
- Reference substance name:
- Trizirconium monoxide
- Molecular formula:
- Zr3O
- IUPAC Name:
- Trizirconium monoxide
- Reference substance name:
- Zirconium dioxide
- EC Number:
- 215-227-2
- EC Name:
- Zirconium dioxide
- Cas Number:
- 1314-23-4
- Molecular formula:
- O2Zr
- IUPAC Name:
- Zirconium dioxide
- Reference substance name:
- Hafnium
- EC Number:
- 231-166-4
- EC Name:
- Hafnium
- Cas Number:
- 7440-58-6
- Molecular formula:
- Hf
- IUPAC Name:
- Hafnium
- Test material form:
- solid: bulk
Constituent 1
Constituent 2
impurity 1
Results and discussion
- Remarks on result:
- not measured/tested
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- > 4 mm
- Distribution:
- < 0.1 %
- No.:
- #2
- Size:
- >= 2 - < 4 mm
- Distribution:
- 44.9 %
- No.:
- #3
- Size:
- >= 1 - < 2 mm
- Distribution:
- 24.2 %
- No.:
- #4
- Size:
- >= 0.5 - < 1 mm
- Distribution:
- 15.3 %
- No.:
- #5
- Size:
- >= 0.25 - < 0.5 mm
- Distribution:
- 11.9 %
- No.:
- #6
- Size:
- >= 0.125 - < 0.25 mm
- Distribution:
- 3.4 %
- No.:
- #7
- Size:
- < 0.125 mm
- Distribution:
- 0.3 %
Applicant's summary and conclusion
- Conclusions:
- More than 95% of the test substance has a particle size between 0.25 and 4 mm.
- Executive summary:
The particle size distribution of the test substance was determined via sieving.
More than 95% of the test substance has a particle size between 0.25 and 4 mm.
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