Tags: Chemical Compound, Chemical Substance.
Silicon monoxide is the chemical compound with the formula SiO where silicon is present in the oxidation state +II. In the vapour phase it is a diatomic molecule. It has been detected in stellar objects and it has been described as the most common oxide of silicon in the universe.When SiO gas is cooled rapidly it condenses to form a brown/black polymeric glassy material (SiO)n which is available commercially and used to deposit films of SiO. Glassy (SiO)n is air- and moisture-sensitive.