Potassium hydrosulfide
Introduction '''Potassium hydrosulfide''' is the inorganic compound with the formula KSH. This colourless salt consists of the cation  and the bisulfide anion . 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. 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  anions, but these tumble rapidly in the solid.Addition of sulfur gives dipotassium pentasulfide.
Synthesis It is prepared by neutralizing aqueous KOH with .
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