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Particle size distribution (Granulometry)

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Description of key information

Silicic acid, zirconium salt, cadmium pigment encapsulated: MMAD=23.59µm, GSD=2.75

Silicic acid, zirconium salt, cadmium pigment encapsulated: D50 = 11.4 µm

Additional information

The total Dustiness (airborne fraction): 61.99mg/g (experimental results, DMT Report).

Mass median aerodynamic diamater of airborne fraction: MMAD=23.59µm (distribution fitted to cascade impactor data). Geometric standard deviation of MMAD: GSD=2.75

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

Head (ET): 51.8%

Tracheobronchial (TB): 0.5%

Pulmonary (PU): 0.7%

Particle Size analysis by laser diffraction:

d50 = 11.4 µm

d90 = 23.3 µm

d10 = 4.4 µm

(All values were calculated assuming that the particles are spherical.)