the info.for calcium carbide
Title: Calcium Carbide CAS Registry Number: 75-20-7 Additional Names: Acetylenogen Molecular Formula: C2Ca Molecular Weight: 64.10 Percent Composition: C 37.47%, Ca 62.52% Line Formula: CaC2 Literature References: Prepn: Ehrlich in Handbook of Preparative Inorganic Chemistry Vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 943. Review: Brennan, J. Electrochem. Soc. 99, 61c (1952). Properties: Grayish-black, irregular lumps or orthorhombic crystals; dec by water with evolution of acetylene leaving a residue of lime. d 2.22; mp 2300°. Melting point: mp 2300° Density: d 2.22 Use: Generating acetylene gas for lighting purposes (1 kg of carbide yields ~300 liters acetylene); as reducing agent, e.g., for direct reduction of copper sulfide to metallic copper; signal fires for marine service; manuf of calcium, iron, alloys, lampblack, cyanamide; welding and cutting metals. |
