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Hafnium nitrate

Hafnium(IV) nitrate is an inorganic compound, a salt of hafnium and nitric acid with the chemical formula Hf(NO<sub>3</sub>)<sub>4</sub>.

Synthesis

Hafnium nitrate can be prepared by the reaction of hafnium tetrachloride and dinitrogen pentoxide.

Properties

Hafnium nitrate is slightly volatile, and can be sublimed at 110 °C and 0.1 mmHg. Hafnium nitrate decomposes on heating (≥ 160°C) to HfO(NO<sub>3</sub>)<sub>2</sub> and then to HfO<sub>2</sub>.

Applications

Hafnium nitrate can be used for the preparation of materials containing hafnium dioxide.

References