Polysulfide

Polysulfides are a class of chemical compounds derived from anionic chains of sulfur atoms. There are two main classes of polysulfides: inorganic and organic. The inorganic polysulfides have the general formula S
_n. These anions are the conjugate bases of polysulfanesH₂S_n. Organic polysulfides generally have the formulae RS_nR, where R is an alkyl or aryl group.