Registration Dossier
Registration Dossier
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EC number: 234-840-6 | CAS number: 12036-10-1
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 14888:2007(E)
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320:2009(E)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Remarks:
- following liquid dispersion
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D10
- Mean:
- 0.17 µm
- St. dev.:
- 0.02
- Percentile:
- D50
- Mean:
- 2.86 µm
- St. dev.:
- 0.09
- Percentile:
- D90
- Mean:
- 19.6 µm
- St. dev.:
- 0.55
- Conclusions:
- The 10th, 50th and 90th percentile average particle sizes were determined as 0.17, 2.86 and 19.6 µm, respectively.
- Executive summary:
The particle size distribution of Ruthenium (IV) oxide was determined by liquid dispersion, in ethanol, following the ISO 14488:2007(E) and ISO 13320:2009(E) guidelines. The study is a unpublished study following a standard method and is acceptable for use without restriction.
The 10th, 50th and 90th percentile average particle sizes were determined as 0.17, 2.86 and 19.6 µm, respectively.
Reference
Description of key information
The 10th, 50th and 90th percentiles from the particle size distribution of ruthenium (IV) oxide were 0.17 μm, 2.86 μm and 19.6 μm, respectively.
Additional information
Potthoff (2015) is an unpublished study following ISO 14488:2007(E) and ISO 13320:2009(E) guidelines, using liquid dispersion in ethanol. The study is considered reliable and suitable for use as the key study for this endpoint.
The 10th, 50th and 90th percentiles from the particle size distribution of ruthenium (IV) oxide were 0.17 μm, 2.86 μm and 19.6 μm, respectively.
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