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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted with EU & OECD test guidance in compliance with GLP and reported with a valid GLP certificate.
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
GLP compliance:
yes
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution
Mass median aerodynamic diameter:
35 µm
Key result
Percentile:
D50
Mean:
ca. 35 µm
Remarks on result:
other: St. dev. is not determined.
No.:
#1
Size:
> 0 - < 50 µm
Distribution:
65 %
Remarks on result:
other: #2 and #3 have similar distribution.
No.:
#1
Size:
> 50 - < 100 µm
Distribution:
15 %
Remarks on result:
other: #2 and #3 have similar distribution.
No.:
#1
Size:
> 100 µm
Distribution:
>= 20 %
Remarks on result:
other: #2 and #3 have similar distribution.
Conclusions:
The mean particle size distribution of Everzol Orange ED-G Crude was determined to be 35 um.

Description of key information

Particle Size Distribution median: 35 µm.

Additional information

The median particle size distribution of Everzol Orange ED-G Crude was determined to be 35 µm. The particle size distribution: 65 % < 50 µm, 15 % between 50 -100 µm, and 20 % above 100 µm. Moreover, Everzol Orange ED-G Crude is not directly sold as a substance but a mixture. The substance is first produced in liquid form, and formulated with other dyes in liquid phase. The final mixture is spread dried with dedusted treatment. One of the mixtures, Everzol Black ED-G, with highest concentration of Everzol Orange ED-G Crude is also tested. Everzol Black ED-G is sold the most in Europe. The result of the particle size distribution is as following: 22 % < 50 µm; 25 % between 50 -100 µm, and 53 % >100 µm. The median particle size is 99 µm.