What is potassium hydrogen sulfide?

Potassium hydrogen sulfide is a chemical compound with the formula KHS. It is also known as potassium bisulfide or potassium sulfhydrate. This yellowish compound is highly soluble in water and is commonly used as a source of hydrogen sulfide gas.

Potassium hydrogen sulfide is prepared by the reaction of hydrogen sulfide gas with potassium hydroxide. It is widely used as a reagent in organic chemistry to convert ketones and aldehydes to thiols. It is also used in the synthesis of certain pharmaceuticals and in the production of dyes and pigments.

In addition to its use in organic chemistry, potassium hydrogen sulfide is commonly used in the mining industry as a flotation agent for ores. It is also used in the leather industry as a dehairing agent for animal hides.

Potassium hydrogen sulfide is a highly reactive compound and can be dangerous if not handled properly. It releases toxic hydrogen sulfide gas upon contact with acid, which can be lethal at high concentrations. It should be stored and handled with caution in well-ventilated areas.