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Physical & Chemical properties

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:
20 Nov 2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: under consideration of: CIPAC MT 187: Particle Size Analysis by Laser Diffraction
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Version / remarks:
adopted in 2009
Qualifier:
according to guideline
Guideline:
other: OECD Test Guideline 110: particle size distribution
Qualifier:
according to guideline
Guideline:
other: EUR 20268 EN(2002)
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
other:
Remarks:
crystalline, sized up to 3 mm * 0.8 mm
Type of distribution:
volumetric distribution
Percentile:
D10
Mean:
53.6 µm
St. dev.:
1.27
Remarks on result:
other:
Remarks:
Individual results: 52.7 µm, 54.5 µm
Percentile:
D90
Mean:
384.6 µm
St. dev.:
11.95
Remarks on result:
other:
Remarks:
Individual results: 376.1µm, 393 µm
Percentile:
D50
Mean:
172.8 µm
St. dev.:
5.3
Remarks on result:
other: Individual results: 169.0 µm, 176.5 µm
No.:
#1
Size:
< 1 µm
Distribution:
0 %
Remarks on result:
other:
Remarks:
2 test series
No.:
#1
Size:
< 10 µm
Distribution:
1.56 %
Remarks on result:
other:
Remarks:
2 test series distributions 1.58% and 1.54%

Before sieving test item consisted of rod-shaped particles with sizes up to 3000 µm * 800 µm. 98.3% passed the sieve with a 1000 µm mesh. Particle size shows monomodal distribution. Maximum value at about 200 µm.

Particle size distribution is monomodal, maximum at 200 µm, L50 = 172.8 µm, no particles < 1 µm, 1.56% of all particles < 10 µm.

Description of key information

D10: 53.6 µm
D50: 172.8 µm

D90: 384 .6 µm

Particle size distribution is monomodal, maximum at 200 µm, no particles <1 µm, 1.56% of all particles < 10 µm.

(OECD 110, Laser Diffraction/Scattering)

Additional information