Tags: Chemical Compound, Chemical Substance.
Barium sulfide is the inorganic compound with the formula BaS. BaS is an important precursor to other barium compounds including BaCO3 and the pigment lithopone ZnS/BaSO4. Like other chalcogenides of the alkaline earth metals BaS is a short wavelength emitters for electronic displays. It is colorless although like many sulfides it is commonly obtained in impure colored forms.