Calcium-Carbide-25-50mm is a chemical compound which appears as gray to black colored solid having chemical formula CaC2 with molar mass of 64.099 g/cm3. It is known to have tetragonal crystalline structure with high boiling point of about 2300 degrees Celsius. This compound also finds application in production of acetylene gas and for preparation of chemical fertilizer as well. It is said to be free from contaminants and assures excellent results. Calcium-Carbide-25-50mm offered by us is also required for desulfurization in making of cast & pig iron.