Purity Grade 99.5%~99.99% Formula CO Application Carbon monoxide and synthesis gas are the raw materials in the polycarbonate, polyurethane and oxy-alcohol manufacture Carbon monoxide is also used in the manufacturing of metal carbonyls. Carbon monoxide is used in calibration gas mixtures for petrochemical industry; environmental emission monitoring, industrial hygiene monitors and trace impurity analyzers. Alternative Name carbonic oxide,carbon oxide Molecular Weight 28.01g/mol CAS No. 630-08-0 Package 40L 44L 49L 50L 40 feet tube trailer