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EC number: 277-616-3
CAS number: 73816-74-7
Table No.1: Results of determination of particle size
Diameter on Cumulative 90%
Diameter on Cumulative 10%
The particle size distribution of
the test substance, Reactive
Red 45:1 was determined. The
laser diffraction method was
The procedures used in the study were in accordance with:
Guidance Document on the Determination of Particle Size
Distribution, Fibre Length and Diameter Distribution of Chemical
Substances, EUR 20268 EN (2002).
Standard ISO 13320: 2009 Particle size analysis – Laser
diffraction methods, First edition 2009-10-01.
Particle size distribution of test substance, Reactive Red 45:1,
is characterized by the following table:
The test item Reactive Red 45:1 has a volumetric based median particle
size D50 of 48.5 µm, which was determined by laser diffraction
The particle size is dependent on the production process. In the
supporting study, a median particle size of 23.6 µm was observed.
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