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>.
Hafnium nitrate can be prepared by the reaction of hafnium tetrachloride and dinitrogen pentoxide.
Hafnium nitrate is slightly volatile, and can be sublimed at 110 ðC and 0.1 mmHg. Hafnium nitrate decomposes on heating (âÂÂ¥ 160ðC) to HfO(NO<sub>3</sub>)<sub>2</sub> and then to HfO<sub>2</sub>.
Hafnium nitrate can be used for the preparation of materials containing hafnium dioxide.