Titanium nitrate is the inorganic compound with formula Ti(NO<sub>3</sub>)<sub>4</sub>. It is a colorless, diamagnetic solid that sublimes readily. It is an unusual example of a volatile binary transition metal nitrate. Ill defined species called titanium nitrate are produced upon dissolution of titanium or its oxides in nitric acid.
Similarly to its original method, Ti(NO<sub>3</sub>)<sub>4</sub> is prepared by the nitration of titanium tetrachloride using dinitrogen pentoxide or chlorine nitrate:
Hydrated titanium nitrate, the nitrate salt of the aquo complex [Ti(H<sub>2</sub>O)<sub>6</sub>]<sup>3+</sup>, is produced upon dissolution of titanium compounds in nitric acid.
The complex has D<sub>2d</sub> symmetry, with four bidentate nitrate ligands. The N-O distances are 1÷29 àand 1÷185 à(noncoordinated).
In the infrared spectrum, it absorbs strongly at 1635 cm<sup>âÂÂ1</sup>, assigned to a N-O vibrational mode.
It is soluble in nonpolar solvents silicon tetrachloride and carbon tetrachloride.
Titanium nitrate is hygroscopic, converting to ill-defined hydrates. The anhydrous material is highly reactive, even toward hydrocarbons. Titanium nitrate also reacts with n-dodecane, p-dichlorobenzene, anisole, and biphenyl.
It decomposes thermally to titanium dioxide.