Potassium hydrosulfide
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| Names | |
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| IUPAC name
Potassium hydrosulfide
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| Other names
Potassium bisulfide, Potassium sulfhydrate, potassium hydrogen sulfide
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| Identifiers | |
1310-61-8  |
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| ChemSpider | 92246  |
| EC Number | 215-182-9 |
| Jmol 3D model | Interactive image |
| PubChem | 102109 |
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| Properties | |
| KHS[1] | |
| Molar mass | 72.171 g/mol |
| Appearance | white solid |
| Density | 1.68–1.70 g/cm3 |
| Melting point | 455 °C (851 °F; 728 K) |
| good | |
| Vapor pressure | {{{value}}} |
| Related compounds | |
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Other anions
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Potassium hydroxide |
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Other cations
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Sodium hydrosulfide |
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Related compounds
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potassium sulfide |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 verify (what is ?) |
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| Infobox references | |
Potassium hydrosulfide is the inorganic compound with the formula KHS. This colourless salt consists of the cation K+ and the bisulfide anion [SH]−. It is the product of the half-neutralization of hydrogen sulfide with potassium hydroxide. The compound is used in the synthesis of some organosulfur compounds.[2] It is prepared by neutralizing aqueous KOH with H2S.[3] Aqueous solutions of potassium sulfide consist of a mixture of potassium hydrosulfide and potassium hydroxide.
The structure of the potassium hydrosulfide resembles that for potassium chloride. Their structure is however complicated by the non-spherical symmetry of the SH− anions, but these tumble rapidly in the solid high temperatures.[4]
Addition of sulfur gives dipotassium pentasulfide.
Synthesis
Potassium hydrosulfide is synthesized by the reaction between a solution of potassium sulfide with excess hydrogen sulfide.
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Dittmer, D. C. "Potassium Hydrogen Sulfide" in Encyclopedia of Reagents for Organic Synthesis (Ed: L. Paquette) 2004, J. Wiley & Sons, New York. doi: 10.1002/047084289.
- ↑ Kurzer, F. Lawson, A. "Thiobenzoylthioglycolic Acid" Organic Syntheses, Collected Volume 5, p.1046 (1973). [1]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
