CaC2 Calcium Carbide, high quality calcium carbide Gas Yield:295/285 0-2mm,2- ... 25mm,25-50mm,50-80mm,70-100mm CaC2, Calcium Carbide National Srandard GB10665-89 INDEXFIRST GRADESALABLE GRADEGAS YIELD L ... /KG≥295285PH3%V/V0.080.09H2S %V/V0.10.13size:0-2mm 2-4mm ... 200kg iron drum Loading Quantity:22.5MT/20'FCL Calcium carbide:M.F. CaC2, gray, black solid, the basic ...