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EC number: 204-271-8
CAS number: 118-71-8
Coefficient of variation for D50 is < 3%; D10 and D90 are < 5%. These
values are within the acceptable limits mentioned in the ISO 13320
substance was observed to be a coarse and medium white powder. Using a
3.2 objective lens, the particles appeared to be irregular shaped
crystals. The smallest individual particle size was approximately 32 μm
and the largest individual size was approximately 736 μm. Using a 402
objective lens, the sample was observed to be made up of single
The particle size distribution of the substance was determined using
laser diffraction analysis (dry powder module) in a GLP study according
to ISO 13320 and CIPAC MT 187. Each result is the average of five runs.
D10= 145 µm, D50= 294 µm and D90= 556 µm. 0% by volume was determined to
be smaller than 10 µm. The MMAD was determined to be 352.5 µm.
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