Aluminum Sulfide Formula

The formula for aluminum sulfide is Al2S3. This means that one molecule of aluminum sulfide contains two atoms of aluminum and three atoms of sulfur. The molar mass of aluminum sulfide is approximately 150.2 g/mol. It is a white to gray solid with a melting point of 1100°C and a boiling point of 1500°C. Aluminum sulfide is insoluble in water but soluble in nonpolar solvents such as benzene, toluene, and carbon disulfide. It reacts with water to produce hydrogen sulfide gas and aluminum hydroxide. Aluminum sulfide is commonly used in the production of ceramics, pigments, and insecticides.