Indium (III) fluoride
Crystal structure | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
__ In 3+ __ F - | ||||||||||||||||
General | ||||||||||||||||
Surname | Indium (III) fluoride | |||||||||||||||
other names |
Indium trifluoride |
|||||||||||||||
Ratio formula | F 3 In | |||||||||||||||
Brief description |
colorless solid |
|||||||||||||||
External identifiers / databases | ||||||||||||||||
|
||||||||||||||||
properties | ||||||||||||||||
Molar mass | 171.82 g mol −1 | |||||||||||||||
Physical state |
firmly |
|||||||||||||||
density |
4.39 g cm −3 |
|||||||||||||||
Melting point |
approx. 1170 ° C |
|||||||||||||||
boiling point |
> 1200 ° C |
|||||||||||||||
solubility |
practically insoluble in water (0.4 g l −1 at 20 ° C) |
|||||||||||||||
Refractive index |
1.453 |
|||||||||||||||
safety instructions | ||||||||||||||||
|
||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
Indium (III) fluoride is an inorganic chemical compound of indium from the group of fluorides .
Extraction and presentation
Indium (III) fluoride can be produced by pyrolysis of ammonium hexafluoroindate in the fluorine stream.
It is also possible to produce it by reacting indium (III) oxide with fluorine
or by reacting indium (III) chloride with hydrogen fluoride at 100 ° C.
properties
Indium (III) fluoride is a colorless solid that is resistant to cold and hot water. In boiling water it hydrolyzes to indium oxide fluoride . Indium (III) fluoride (in contrast to the trihydrate) dissolves very little in water, but is easily soluble in dilute acids. It is reduced by a very slow hydrogen flow at 300 ° C to (almost pure) indium (I, III) fluoride , by a rapid hydrogen flow to the metal. Indium (III) fluoride has a crystal structure analogous to vanadium (III) fluoride ( trigonal , space group R 3 c (space group no. 167) , a = 5.4103 Å , c = 14.3775 Å) with in all directions the corner-sharing octahedra of fluorine atoms.
use
Indium (III) fluoride is used in the synthesis of non-oxide glasses and cyanohydrins and as a catalyst in some chemical reactions.
Individual evidence
- ↑ a b c d e f g Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 240.
- ↑ a b c d e f data sheet Indium (III) fluoride, anhydrous, 99.95% (metals basis) from AlfaAesar, accessed on September 24, 2013 ( PDF )(JavaScript required) .
- ^ Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer DE, 1998, ISBN 3-642-58842-5 , pp. 490 ( limited preview in Google Book search).
- ^ JJ Zuckerman: Inorganic Reactions and Methods, The Formation of Bonds to Hydrogen . John Wiley & Sons, 2009, ISBN 0-470-14536-6 , pp. 89 ( limited preview in Google Book search).
- ↑ R. Hoppe, D. Kissel: On the knowledge of AlF 3 and InF 3 . In: Journal of Fluorine Chemistry , 1984 , 24 , pp. 327-340 doi : 10.1016 / S0022-1139 (00) 81321-4
- ^ William W. Porterfield: Inorganic Chemistry . Academic Press, 2013, ISBN 0-323-13894-2 , pp. 132 ( limited preview in Google Book search).
- ↑ Dmitrii N. Khitarov, Boris Pavlovich Sobolev, Irina V. Alexeeva: The Rare Earth Trifluorides . Institut d'Estudis Catalans, 2001, ISBN 84-7283-610-X , p. 29 ( limited preview in Google Book search).
- ↑ Data sheet Indium (III) fluoride, ≥99.9% trace metals basis from Sigma-Aldrich , accessed on September 24, 2013 ( PDF ).
- ↑ Atta-ur- Rahman: Advances in Organic Synthesis: Modern Organofluorine Chemistry-Synthetic Aspects . Bentham Science Publishers, 2005, ISBN 1-60805-197-8 , pp. 192 ( limited preview in Google Book search).