碳化钙

Products name: Calcium Carbide H.S.CODE: 28491000 CAS NO.: 75-20-7 Molecular Formula: CaC2 Specification: GAS YIELD (L/KG) 285 305 PH3/C2H2 0.08% 0.06% H2S/C2H2 0.01% 0.01% SIZE 25-50MM 50-80MM Uses: Used in the generation of acetylenegas for welding, and as areagent. Property: Grey, brown or black solid, purple when its purity is higher, the specific gravity is 2.22(18), melting point is 2300 , the product can absorb water in the air and conduct electricity. They higher its purity is, the easier it conducts, it dissolves in water, turns into acetylene and calcium hydroxide and releases heat. Use: Calcium carbide is an important basic material in organic synthesis industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium cyanamide, acetic acd, acetaldehydr, ethylacetate, cyanide acetate, dicyandiamide, acetone, octanol, trichloride ethylene etc. Also used as desulfurizer and dehydrant of steel and for cutting and welding metals. Packing: 50kgs/100kgs new iron drums.