Ruthenium (III) iodide
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Surname | Ruthenium (III) iodide | ||||||||||||||||||
other names |
Ruthenium triiodide |
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Molecular formula | RuI 3 | ||||||||||||||||||
Brief description |
black solid |
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properties | |||||||||||||||||||
Molar mass | 481.78 g mol −1 | ||||||||||||||||||
Physical state |
firmly |
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Melting point |
590 ° C (decomposition) |
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solubility |
almost insoluble 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 . |
Ruthenium (III) iodide is an inorganic chemical compound of ruthenium from the group of iodides .
Extraction and presentation
Ruthenium (III) iodide can be obtained by reacting ruthenium (III) chloride hydrate with potassium iodide .
It can also be prepared by the reaction of ruthenium tetroxide with hydriodic acid .
properties
Ruthenium (III) iodide is a black solid. It is not substantially soluble in water and organic solvents. In air, oxidation takes place at around 200 ° C , and thermal decomposition at temperatures above 300 ° C. The compound has an orthorhombic crystal structure with the space group Pmmn (space group no. 59) and the lattice parameters a = 647 pm, b = 1120.5 pm and c = 585.5 pm.
Individual evidence
- ↑ a b c d e f g data sheet Ruthenium (III) iodide, anhydrous, Ru 20.5% min from AlfaAesar, accessed on April 29, 2017 ( PDF )(JavaScript required) .
- ↑ a b Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1750.
- ↑ Catherine E. Housecroft: Inorganic Chemistry . Pearson Education, 2005, ISBN 0-13-039913-2 , pp. 675 ( limited preview in Google Book search).