Registration Dossier

Physical & Chemical properties

Particle size distribution (Granulometry)

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
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
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: ISO 14888:2007(E)
Qualifier:
according to
Guideline:
other: ISO 13320:2009(E)
Qualifier:
according to
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
Test material information:
Composition 1
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 The study is a unpublished study following a standard method and is acceptable for use without restriction.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.

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Potthoff (2015) is an unpublished study following ISO 14488:2007(E) and ISO 13320:2009(E) guidelines, using liquid dispersion in ethanol.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.