Registration Dossier
Registration Dossier
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EC number: 234-909-0 | CAS number: 12039-88-2
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
- Principles of method if other than guideline:
- Laser diffraction (Malvern mastersizer instrument)
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Tungsten disilicide
- EC Number:
- 234-909-0
- EC Name:
- Tungsten disilicide
- Cas Number:
- 12039-88-2
- Molecular formula:
- Si2W
- IUPAC Name:
- Tungsten disilicide
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 1.048 µm
- Remarks on result:
- other: standard deviation not indicated
- Percentile:
- D50
- Mean:
- 2.369 µm
- Remarks on result:
- other: standard deviation not indicated
- Percentile:
- D90
- Mean:
- 4.953 µm
- Remarks on result:
- other: standard deviation not indicated
Applicant's summary and conclusion
- Conclusions:
- The particle size distribution of WSi2 was determined by laser diffraction in water as dispersion liquid.
Mean diameters (distribution type: volume) are the following:
D (v, 0.1) = 1.048 μm
D (v, 0.5) = 2.369 μm
D (v, 0.9) = 4.953 μm
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