Registration Dossier
Registration Dossier
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EC number: 236-293-9 | CAS number: 13283-01-7
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:
- 2016-06-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- 24.59 µm
- Percentile:
- D10
- Mean:
- 14.52 µm
- St. dev.:
- 0.7
- Remarks on result:
- other: "According to ISO 13320 the relative standard deviation for d50 is smaller than 3 %, for d10 and d90 smaller than 5 %. For powders below 10 µm these maximum values should be doubled."
- Percentile:
- D50
- Mean:
- 24.59 µm
- St. dev.:
- 0.7
- Remarks on result:
- other: "According to ISO 13320 the relative standard deviation for d50 is smaller than 3 %, for d10 and d90 smaller than 5 %. For powders below 10 µm these maximum values should be doubled."
- Percentile:
- D90
- Mean:
- 39.54 µm
- St. dev.:
- 2
- Remarks on result:
- other: "According to ISO 13320 the relative standard deviation for d50 is smaller than 3 %, for d10 and d90 smaller than 5 %. For powders below 10 µm these maximum values should be doubled."
- Conclusions:
- Mean diameters (distribution type: volume) applying Fraunhofer approximation:
D (v, 0.1) = 14.52 μm
D (v, 0.5) = 24.59 μm
D (v, 0.9) = 39.54 μm - Executive summary:
The particle size distribution of tungsten hexachloride was determined by laser diffraction in water as dispersion liquid according to ISO 13320.
The following mean diameters (distribution type: volume) applying Fraunhofer approximation were determined:
D (v, 0.1) = 14.52 μm
D (v, 0.5) = 24.59 μm
D (v, 0.9) = 39.54 μm
Reference
Description of key information
The particle size distribution of tungsten hexachloride was determined by laser diffraction in water as dispersion liquid according to ISO 13320.
The following mean diameters (distribution type: volume) applying Fraunhofer approximation were determined:
D (v, 0.1) = 14.52 μm
D (v, 0.5) = 24.59 μm
D (v, 0.9) = 39.54 μm
Additional information
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