Polysulfane

A polysulfane is a chemical compound of formulaH₂S_n, where n > 1 (although disulfane (H₂S₂) is sometimes excluded). Compounds containing 2 – 8 sulfur atoms have been isolated, longer chain compounds have been detected, but only in solution. H₂S₂ is colourless, higher members are yellow with the colour increasing with the sulfur content. In the chemical literature, the term polysulfane is sometimes used for compounds containing −(S)_n−, e.g. organic polysulfanes R−(S)_n−R, but this category of organic compound is more typically referred to as a polysulfide.