Tags: Chemical Compound, Chemical Substance.
Indium(III) sulfide is the inorganic compound with the formula In2S3. Three different structures (polymorphs) are known: yellow α-In2S3 has a defect cubic structure red β-In2S3 has a defect spinel tetragonal structure and γ-In2S3 has a layered structure. The red β form is considered to be the most stable form at room temperature although the yellow form may be present depending on the method of production. Like related covalent solids In2S3 is insoluble in all solvents.