Registration Dossier
Registration Dossier
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EC number: 234-963-5 | CAS number: 12045-64-6
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2 May 2014
- 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:
- other company data
- Title:
- Unnamed
- Year:
- 2 014
- Report date:
- 2014
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- not specified
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Zirconium diboride
- EC Number:
- 234-963-5
- EC Name:
- Zirconium diboride
- Cas Number:
- 12045-64-6
- Molecular formula:
- ZrB2
- IUPAC Name:
- zirconium diboride
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Name of test material (as cited in study report): ZrB2 RTPP sprühgetrocknet ex HTK8
- Batch number: ZrB2 - 1.1/14
- Molecular formula (if other than submission substance): ZrB2
- Appearance: granulate form
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 20.26 µm
- Remarks on result:
- other: SD not reported
- Key result
- Percentile:
- D50
- Mean:
- 45.36 µm
- Remarks on result:
- other: SD not reported
- Key result
- Percentile:
- D90
- Mean:
- 81.27 µm
- Remarks on result:
- other: SD not reported
Any other information on results incl. tables
MV (Mean diameter in microns of the “volume distribution”): 48.94 µm
MN (Mean diameter, in microns, of the “number distribution"): 19.67 µm
MA (Mean diameter, in microns, of the “area distribution”): 36.70 µm
CS - Calculated surface: 0.163 m2/cc
SD – Standard deviation: 23.78
Applicant's summary and conclusion
- Conclusions:
- The median particle size (D50) was determined to be 45.36 µm, whereas the D10 and D90 were determined to be 20.26 and 81.27 µm, respectively. These values can be considered representative for the granular forms.
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