calcium carbide Calcium carbide is used in the gerneration of acetylene gas for welding, and as a reagent.we can produce all kinds of calcium for you. Specification: 1) .Gas yield: 280L/ KG, 290L/ KG, 295L/ KG 2) .Sizes: 4-7mm; 7-15mm; 15-25mm; 25-50mm; 50-80mm.etc. 3) .Packing: Net in 100kg or 50kg new iron drums without pallets 4-7mm Gas Yielde280L/ KG, 0.06% dPH3 content in acetylene max., 0.1% dH2S content in acetylene max, 7-15mm, Gas Yielde290L/ KG, 0.06% dPH3 content in acetylene max. 0.1% dH2S content in acetylene max. 15-25mm, Gas Yielde290L/ KG, 0.06% dPH3 content in acetylene max. 0.1% dH2S content in acetylene max. 25-50mm or 50-80mm Gas Yielde295L/ KG, 0.06% dPH3 content in acetylene max. 0.1% dH2S content in acetylene max. Net in 100kg or 50kg new iron drums without pallets. The packing must be kept in good condition and the goods are stored in a dry, cool and ventilated place.