Selenium (I) chloride
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Selenium (I) chloride | |||||||||||||||
other names |
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Molecular formula | Se 2 Cl 2 | |||||||||||||||
Brief description |
dark red liquid with a sour odor |
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properties | ||||||||||||||||
Molar mass | 228.83 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
2.77 g cm −3 |
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Melting point |
−85 ° C |
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boiling point |
127 ° C (decomposition) |
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solubility |
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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 . |
Selenium (I) chloride is an inorganic chemical compound of selenium from the group of chlorides .
Extraction and presentation
Selenium (I) chloride can be obtained by reacting a solution of selenium dioxide in hydrochloric acid with selenium.
It can also be represented by the reaction of selenium and sulfur trioxide with hydrogen chloride .
properties
Selenium (I) chloride is a dark red, slightly brownish, oily and moisture-sensitive liquid that is soluble in chloroform , benzene , carbon tetrachloride and carbon disulfide . It smells similar to disulfur dichloride and slowly hydrolyzes with water to form selenic acid , hydrochloric acid and selenium. Solid selenium (I) chloride has a monoclinic crystal structure with the space group P 2 1 / n (space group no. 14, position 2) .
See also
Individual evidence
- ↑ a b c d e f g h i j Data sheet Selenium (I) chloride, 99% from AlfaAesar, accessed on November 22, 2013 ( PDF )(JavaScript required) .
- ↑ 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. 416.
- ^ Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer DE, 1998, ISBN 3-642-58842-5 , pp. 720 ( limited preview in Google Book Search).