What Is Carbonyl Sulfide?
Carbonyl sulfide is a chemical compound of carbon, sulfur and oxygen, with each molecule containing one atom of each element. It has the chemical formula OCS but is commonly written COS. It is a colorless, flammable gas with an unpleasant sulfur odor. It has several industrial uses but is most commonly used as an intermediate compound in the making of organic herbicides. The main uses of carbonyl sulfide are in the making of organic herbicides; in the manufacturing of other chemicals, such as organic sulfur compounds; and as a fumigant. It is a byproduct of the production of carbon disulfide. Carbonyl sulfide hydrolysis is a process that produces hydrogen sulfide, which is used to make sulfuric acid. It also is used in the production of a class of chemicals called alkyl carbonates.