Potassium pentasulfide (original) (raw)

Potassium pentasulfide is the inorganic compound with the formula K2S5. It is a red-orange solid that dissolves in water. The salt decomposes rapidly in air.It is one of several polysulfide salts with the general formula M2Sn, where M = Li, Na, K and n = 2, 3, 4, 5, 6. The polysulfide salts of potassium and sodium are similar.