title: Calcium sulfide
text: Calcium sulfide is a chemical compound made of one calcium atom and one sulphide atom. It has the chemical formula CAS. It is white and forms cubes.
  
  It has a high melting point of 2,525 Celsius (4,577 °F; 2,798 Kelvin), and decomposes upon contact with water.
  
  Calcium compounds
  Sulfur compounds