Indium (III) hydroxide
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| __ In 3+ __ O 2− __ H + | |||||||||||||||||||
| General | |||||||||||||||||||
| Surname | Indium (III) hydroxide | ||||||||||||||||||
| other names |
Indium trihydroxide |
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| Ratio formula | In (OH) 3 | ||||||||||||||||||
| Brief description |
white to yellow solid |
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| properties | |||||||||||||||||||
| Molar mass | 165.84 g mol −1 | ||||||||||||||||||
| Physical state |
firmly |
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| density |
4.45 g cm −3 (20 ° C) |
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| Melting point |
150 ° C (decomposition) |
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| solubility |
very little soluble in water |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | |||||||||||||||||||
Indium (III) hydroxide is an inorganic chemical compound of indium from the group of hydroxides .
Occurrence
Indium (III) hydroxide occurs naturally in the form of the mineral dzhalinditol .
Extraction and presentation
Indium (III) hydroxide can be obtained by reacting an indium (III) chloride solution with an ammonia solution at 100 ° C and then drying:
properties
Indium (III) hydroxide is a white to yellow solid that has a crystal structure similar to the rhenium (VI) oxide type ( space group Im 3 (space group no. 204) , lattice parameter a = 7.974 Å ) and is at 150 ° C decomposed by giving off water. Like aluminum hydroxide and gallium (III) hydroxide, the compound is amphoteric and dissolves more easily in acids than in bases, with formation of indium salts and indates. At 10 MPa pressure and a temperature of 250 ° C to 400 ° C, it transforms into indium oxide hydroxide (InO (OH)).
use
Indium (III) hydroxide can be used as a catalyst in organic chemistry .
Individual evidence
- ^ A b Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . CRC Press, 2011, ISBN 1-4398-1462-7 , pp. 208 ( limited preview in Google Book search).
- ↑ a b c d e data sheet Indium (III) hydroxide, 99.99% trace metals basis from Sigma-Aldrich , accessed on March 21, 2014 ( PDF ).
- ^ AJ Downs: Chemistry of Aluminum, Gallium, Indium, and Thallium . Springer, 1993, ISBN 0-7514-0103-X , p. 141 ( limited preview in Google Book search).
- ^ Mineralienatlas: Mineralienatlas Lexikon - Dzhalindit , accessed on Saturday, March 22, 2014
- ↑ a b 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. 870.
- ↑ DF Mullica, GW Beall, WO Milligan, JD Korp, I. Bernal: The crystal structure of cubic In (OH) 3 by X-Ray and neutron diffraction methods. In: Journal of Inorganic and Nuclear Chemistry , 41, 1979, pp. 277-282, doi: 10.1016 / 0022-1902 (79) 80133-5 .
- ^ Egon Wiberg, Nils Wiberg: Inorganic Chemistry . Academic Press, 2001, ISBN 0-12-352651-5 , pp. 1034 ( limited preview in Google Book search).
- ↑ Yoshiyuki Onishi, Daigo Ogawa, Makoto Yasuda, Akio Baba: Direct Conversion of Carbonyl Compounds into Organic Halides: Indium (III) Hydroxide-Catalyzed Deoxygenative Halogenation Using Chlorodimethylsilane. In: Journal of the American Chemical Society. 124, 2002, pp. 13690-13691, doi: 10.1021 / ja0283246 .