Titanium nitrate is the inorganic compound with formula Ti(NO3)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.
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Other names
titanium tetranitrate, tetranitratotitanium
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Identifiers | |
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3D model (JSmol)
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ChemSpider |
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ECHA InfoCard | 100.222.601 |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
Ti(NO3)4 | |
Molar mass | 295.8866 g/mol |
Appearance | white volatile solid |
Density | 2.192[3] |
Melting point | 58[4] °C (136 °F; 331 K) |
Boiling point | decompose |
Reacts[5] | |
Structure[6] | |
monoclinic | |
P21/C | |
a = 7.80, b = 13.57, c = 10.34 Å α = 90°, β = 125·0°, γ = 90°
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Lattice volume (V)
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896.52 Å3 |
Formula units (Z)
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4 |
8 | |
flattened tetrahedral | |
Related compounds | |
Related compounds
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hafnium nitrate, zirconium nitrate, titanium phosphate, titanium perchlorate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Similarly to its original method,[7][8] Ti(NO3)4 is prepared by the nitration of titanium tetrachloride using dinitrogen pentoxide[9] or chlorine nitrate:[10]
Hydrated titanium nitrate, the nitrate salt of the aquo complex [Ti(H2O)6]3+, is produced upon dissolution of titanium compounds in nitric acid.[11]
The complex has D2d symmetry, with four bidentate nitrate ligands. The N-O distances are 1·29 Å and 1·185 Å (noncoordinated).[6]
In the infrared spectrum, it absorbs strongly at 1635 cm−1, assigned to a N-O vibrational mode.[12]
It is soluble in nonpolar solvents silicon tetrachloride and carbon tetrachloride.[13][8]
Titanium nitrate is hygroscopic, converting to ill-defined hydrates.[14] The anhydrous material is highly reactive, even toward hydrocarbons.[14] Titanium nitrate also reacts with n-dodecane,[15] p-dichlorobenzene, anisole, biphenyl,[15][16]
It decomposes thermally to titanium dioxide.[17]