CaC2 Calcium Carbide, high quality calcium carbide Gas Yield:295/285 0-2mm,2-4mm,4- ... ,15-25mm,25-50mm,50-80mm,70-100mm CaC2, Calcium Carbide National Srandard GB10665-89 INDEXFIRST GRADESALABLE GRADEGAS YIELD L/KG ... F. CaC2, gray, black solid, the basic material of organic synthesis. Usage:(1)Reacting with water to bring about ... lime nitrogen .(3)The desulfurizer in steel industry. CaC2 Calcium Carbide