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EC number: 278-270-6
CAS number: 75627-12-2
Coefficient of variation for D50 is < 3%; D10 and D90 are < 5%. These
values are within the acceptable limits mentioned in the ISO 13320
The substance was observed to be a medium to fine pink powder with
Under a microscope using 3.2 objective lens, the particles appeared to
be irregular shaped crystals. The smallest individual particle size was <
10 μm and the largest individual size was approximately 432 μm.
Under a microscope using 40 objective lens, the sample was observed to
be made up of single crystalline particles and some agglomerated
The particle size distribution of the substance was determined using
laser diffraction analysis (small volume wet module) in a GLP study
according to ISO 13320 and CIPAC MT 187. Each result is the average of
five runs. D10= 5.891 µm, D50= 42.324 µm and D90= 136.750 µm. 16.8% by
volume was determined to be smaller than 10 µm. The MMAD was calculated
to be 57.099 µm.
The substance was observed (at room temperature) to be a medium to fine
pink powder with clusters.
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