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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2004
Reliability:
2 (reliable with restrictions)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Deviations:
not specified
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Percentile:
D10
Mean:
0.84 µm
Remarks on result:
other: .
Percentile:
D50
Mean:
8.75 µm
Remarks on result:
other: .
Percentile:
D90
Mean:
38.34 µm
Remarks on result:
other: .

Description of key information

The test substance is typical present as a red powder and several experimental reports have reported a D50 in the range 2 to 28um. TEM images indicate, that the test substance mainly consists of aggregates and/or agglomerates while the BET surface area have been measured to 18.9 m2/g (27.2 m2/cm3)

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