Registration Dossier
Registration Dossier
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EC number: 233-131-9 | CAS number: 10042-76-9
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
Description of key information
Dustiness testing: Mass median aerodynamic diameter of airborne fraction (MMAD): 30.3µm Geometric standard deviation (GSD): 1.54
Particle size distribution: D50 314.5µm (Laser diffraction)
Additional information
The D10, D50and D90of the particle size distribution of a representative test material are 165.1µm, 314.5µm and 532.1µm, respectively. The total dustiness (airborne fraction) was determined according to method DIN 55992-1:2006 using a modified Heubach dust meter. Total dustiness is 11.51 mg/g. MMAD 30.3 µm (GSD 1.54). These were used as distribution parameters for the MPPD model enabling an estimation of deposited dust fractions in the human respiratory tract: These fractions were estimated as follows:
Head
(ET): 44.46%
Tracheobronchial
(TB): 0.04%
Pulmonary
(PU): 0.01%
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