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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
GLP compliance:
yes (incl. certificate)
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.
Key result
Percentile:
D10
Mean:
ca. 365.8 µm
St. dev.:
1.3
Key result
Percentile:
D50
Mean:
ca. 936.1 µm
St. dev.:
0.9
Key result
Percentile:
D90
Mean:
ca. 1 526.3 µm
St. dev.:
1.4

Additionally to the determination of the particle size distribution, the test item was examined microscopically to determine the shape of the particles. The particles of the white granules have a cylindrical shape, a smooth surface and irregular edges.

Conclusions:
2,2'-azobis(2-amidinopropane)-dihydrochloride has a median particle size L50 = 936 µm.
Executive summary:

2,2'-azobis(2-amidinopropane)-dihydrochloride has a median particle size L50 = 936 µm, which was determined by laser diffraction measurement.

Description of key information

The tested 2,2'-azobis(2-amidinopropane) dihydrochloride has a median particle size L50 = 936 µm based on volumetric distribution of the sample.

Additional information