Caesium sulfide
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Names | |
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IUPAC name
Caesium sulfide
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Identifiers | |
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3D model (JSmol)
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ChemSpider | |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
Cs2S | |
Molar mass | 297.876 |
Appearance | white crystal |
Density | 4.19 g·cm−3[1] |
Melting point | 480 °C[2] |
hydrolyses to form [3] | |
Solubility in ethanol and glycerol | soluble |
Structure | |
cubic, anti-fluorite | |
Hazards | |
Main hazards | toxic |
GHS labelling: | |
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Signal word
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Danger |
H314, H400 | |
P260, P264, P273, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P391, P405, P501 | |
Related compounds | |
Other anions
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Caesium oxide |
Other cations
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Lithium sulfide Sodium sulfide Potassium sulfide Rubidium sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Caesium sulfide (also spelled cesium sulfide in American English) is an inorganic salt with a chemical formula Cs2S. It is a strong alkali in aqueous solution. In the air, caesium sulfide emits rotten egg smelling hydrogen sulfide.
Production[]
Similar to sodium sulfide, anhydrous caesium sulfide can be produced by reacting caesium and sulfur in THF. It needs ammonia or naphthalene to react.[4]
- 2Cs + S → Cs2S
By dissolving hydrogen sulfide into caesium hydroxide solution, it will produce , then it will produce caesium sulfide too.[5][6]。
- CsOH + H2S → CsHS + H2O
- CsHS + CsOH → Cs2S + H2O
References[]
- ^ Sommer, Helmut; Hoppe, Rudolf. The crystal structure of cesium sulfide and a remark about cesium selenide, cesium telluride, rubidium selenide, and rubidium telluride (in German). Zeitschrift fuer Anorganische und Allgemeine Chemie, 1977. 429: 118-30. ISSN: 0044-2313
- ^ Dale L. Perry, Sidney L. Phillips: Handbook of inorganic compounds. CRC Press, 1995, ISBN 978-0-8493-8671-8, S. 336 ([1], p. 336, at Google Books).
- ^ Jean D'Ans, Ellen Lax: Taschenbuch für Chemiker und Physiker. 3. Elemente, anorganische Verbindungen und Materialien, Minerale, Band 3. 4. Auflage, Springer, 1997, ISBN 978-3-5406-0035-0, S. 692 ([2], p. 692, at Google Books).
- ^ J.-H. So and P. Boudjouk (1992). N. G. Russell (ed.). "Hexamethyldisilathiane". Inorganic Syntheses: 30–32. doi:10.1002/9780470132609.ch11. ISBN 9780470132609.
- ^ Wilhelm Blitz, Ernst Wilke-Dörfurt: "Über Sulfide des Rubidiums und Cäsiums" in Zeitschr. f. anorg. Chem. 1906. 48, S. 297–317. Volltext
- ^ R. Abegg, F. Auerbach: 'Handbuch der anorganischen Chemie'. Verlag S. Hirzel, Bd. 2, 1908. S. 430.Volltext
Categories:
- Caesium compounds
- Sulfides