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Physical & Chemical properties

Particle size distribution (Granulometry)

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The median particle size L50 of antimony trisulfide deduced from the particle size distributions is 32.7 µm.

The particle size L10 of antimony trisulfide deduced from the particle size distributions is 4.7 µm.

The particle size L90 of antimony trisulfide deduced from the particle size distributions is 100.4 µm.

Total Dustiness (airborne fraction): 0.40 mg/g (experimental results, DMT Report).

Mass median aerodynamic diameters (bi-modal distribution) of airborne fraction: MMAD1 = 7.69 µm (11.7%) , MMAD2 = 28.48 µm (88.3%) (distribution fitted to cascade impactor data, percentile in parentheses indicates weighting factor).

Geometric standard deviation of MMAD: GSD1 = 2.38, GSD 2 = 1.56

Fractional deposition in human respiratory tract (MPPD model, based on calculated MMAD):

Head (ET): 51.7%

Tracheobronchial (TB): 0.2%

Pulmonary (PU): 0.5%

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