Names | |
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IUPAC name
Cesium sulfide
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
PubChem CID
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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 caesium bisulfide[3] | |
Solubility in ethanol and glycerol | soluble |
Structure | |
cubic, anti-fluorite | |
Hazards | |
Main hazards | toxic |
GHS pictograms | |
GHS Signal word | Danger |
H314, H400 | |
P260, P264, P273, P280, P301+330+331, P303+361+353, P304+340, P305+351+338, P310, P321, P363, P391, P405, P501 | |
Related compounds | |
Other anions
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Caesium oxide Caesium selenide Caesium telluride Caesium polonide |
Other cations
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Lithium sulfide Sodium sulfide Potassium sulfide Rubidium sulfide Francium sulfide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Infobox references | |
Cesium sulfide is an inorganic salt with a chemical formula Cs2S. It is a strong alkali in aqueous solution. In the air, cesium sulfide emits rotten egg smelling hydrogen sulfide.
Similar to sodium sulfide, anhydrous cesium sulfide can be produced by reacting cesium and sulfur in THF. It needs ammonia or naphthalene to react.[4]
By dissolving hydrogen sulfide into cesium hydroxide solution, it will produce cesium bisulfide, then it will produce cesium sulfide too.[5][6]。
Original source: https://en.wikipedia.org/wiki/Caesium sulfide.
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