Titanium nitrate is the
inorganic compound
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ...
with formula Ti(NO
3)
4. 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.
Preparation
Similarly to its original method,
Ti(NO
3)
4 is prepared by the nitration of
titanium tetrachloride
Titanium tetrachloride is the inorganic compound with the formula . It is an important intermediate in the production of titanium metal and the pigment titanium dioxide. is a volatile liquid. Upon contact with humid air, it forms thick clouds o ...
using
dinitrogen pentoxide or
chlorine nitrate
Chlorine nitrate, with chemical formula ClNO3 is an important atmospheric gas present in the stratosphere. It is an important sink of chlorine that contributes to the depletion of ozone.
It explosively reacts with metals, metal chlorides, alcohol ...
:
:TiCl
4 + 4 N
2O
5 → Ti(NO
3)
4 + 4
ClNO2
Hydrated titanium nitrate, the nitrate salt of the
aquo complex i(H2O)6sup>3+, is produced upon dissolution of titanium compounds in nitric acid.
Structure
The complex has D
2d symmetry
Symmetry (from grc, συμμετρία "agreement in dimensions, due proportion, arrangement") in everyday language refers to a sense of harmonious and beautiful proportion and balance. In mathematics, "symmetry" has a more precise definit ...
, with four bidentate nitrate ligands. The N-O distances are 1·29 Å and 1·185 Å (noncoordinated).
Physical properties
In the infrared spectrum, it absorbs strongly at 1635 cm
−1, assigned to a N-O vibrational mode.
It is soluble in nonpolar solvents
silicon tetrachloride and carbon tetrachloride.
Reactions
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,
,
anisole
Anisole, or methoxybenzene, is an organic compound with the formula CH3OC6H5. It is a colorless liquid with a smell reminiscent of anise seed, and in fact many of its derivatives are found in natural and artificial fragrances. The compound is ...
,
biphenyl
Biphenyl (also known as diphenyl, phenylbenzene, 1,1′-biphenyl, lemonene or BP) is an organic compound that forms colorless crystals. Particularly in older literature, compounds containing the functional group consisting of biphenyl less one ...
,
It decomposes thermally to titanium dioxide.
References
Other reading
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{{Nitrates
Nitrates
Titanium(IV) compounds