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Particle size distribution (Granulometry)

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Description of key information

Particle size distribution is not possible to determine  as HfCl4 reacts instantly with water vapour to form hafnium dichloride oxide and hydrogen chloride . 

Additional information

Testing is technically not possible as HfCl4 reacts instantenously with water vapor to form hafnium dichloride oxide and hydrogen chloride. Moreover, the powder spontaneously crumbles (sublimation) and makes impossible the determination of particle size.