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Physical & Chemical properties

Particle size distribution (Granulometry)

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Particle size distribution is not possible to determine  as ZrCl4 reacts instantly with water vapour to form zirconium dichloride oxide and hydrogen chloride . However,  a French thesis and an in house study (Areva CEZUS, Jarrie) give a distribution range of the  particle size of ZrCl4 between 40 and 80 µm

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Testing is technically not possible as ZrCl4 reacts instantenously with water vapor to form zirconium dichloride oxide and hydrogen chloride. Moreover, the powder spontaneously crumbles (sublimation) and makes impossible the determination of particle size. However, A french Thesis (B.BEDEN, 1974) reports a sieving with AFNOR mesh and locate the range distribution between 40 and 80 µm.

This result is consistent with an in house study (Areva CEZUS, Jarrie) where ZrCl4 was pulverised in anhydrous fluid and particle size distribution was determined by laser detection: DM 50 = 60-70μm. However, this parameter is not relevant for ZrCl4 used in normal conditions in non-closed atmosphere, as it reacts immediatly with water content in the air.