... basic material in organic synthesis industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, ... in steel drum of 100kg, net each and marked with "calcium carbide avoid fire and water" on the ... cool, venilated and dry warehouse and kept away from water and moisture.[Standard]:Standard:GB10665-2004 ItemPremium gradeGrade ... V/V)≤0.100.100.15 Direct from factory, with better price.