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Potassium hydrosulfide

Chemical compound From Wikipedia, the free encyclopedia

Potassium hydrosulfide
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Potassium hydrosulfide is an inorganic compound with the formula KSH. 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.[1] Aqueous solutions of potassium sulfide consist of a mixture of potassium hydrosulfide and potassium hydroxide.

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The structure of the potassium hydrosulfide resembles that of potassium chloride. Their structure is however complicated by the non-spherical symmetry of the SH anions, but these tumble rapidly in the solid.[2]

The addition of sulfur gives dipotassium pentasulfide.

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Synthesis

It is prepared by neutralizing aqueous KOH with H2S.[3][4]

References

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