Titanium (II) iodide
Crystal structure | ||||||||||
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__ Ti 2+ __ I - | ||||||||||
General | ||||||||||
Surname | Titanium (II) iodide | |||||||||
other names |
Titanium diiodide |
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Ratio formula | TiI 2 | |||||||||
Brief description |
black solid |
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External identifiers / databases | ||||||||||
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properties | ||||||||||
Molar mass | 301.676 g mol −1 | |||||||||
Physical state |
firmly |
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density |
5.2 g cm −3 |
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Melting point |
480 ° C (decomposition) |
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solubility |
Decomposes in water |
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safety instructions | ||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Titanium (II) iodide is an inorganic chemical compound of titanium from the group of iodides .
Extraction and presentation
Titanium (II) iodide can be obtained by reacting titanium with iodine .
properties
Titanium (II) iodide is a black solid that catches fire in moist air and dissolves in water to form the titanium (III) salt with evolution of hydrogen . It has a trigonal crystal structure of the cadmium (II) iodide type ( polytype 2H) with the space group P 3 m 1 (space group no.164 ) and the lattice parameters a = 411.0 and c = 682.0 pm. The compound decomposes above 480 ° C.
Individual evidence
- ↑ a b c WebElements: Periodic Table of the Elements - titanium diiodide
- ↑ a b J. D. Fast: The preparation of pure titanium iodides. In: Recueil des Travaux Chimiques des Pays-Bas. 58, 1939, pp. 174-180, doi : 10.1002 / recl.19390580209 .
- ↑ a b c Georg Brauer (ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1336.
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.