Calcium carbide CAS NO.75-20-7

Calcium Carbide, Calciumdicarbide 1. Product name: Calcium Carbide(CaC2) 2. H. S. CODE: 28491000 3. CAS No.: 75-20-7 4. UN NO: 1402 5. Mole…

Calcium Carbide, Calciumdicarbide 1. Product name: Calcium Carbide(CaC2) 2. H. S. CODE: 28491000 3. CAS No.: 75-20-7 4. UN NO: 1402 5. Molecular Formula: CaC2 6. Gas yield: 280-290/kg, 295/kg, 305/kg 7. Purity:25-50mm, 50-80mm,100-120mm 8. Packing: 50KG/100KG per drum Chemical Properties: Grey or black solid with a garlic-like odour Uses of calcium carbide: (1) Reacting with water to bring about ethine. (2) Reacting with nitrogen to product lime nitrogen. (3) The desulfurizer in steel industry. Calcium carbide is an important basic material in organic synthesis industry, Acetylene obtained from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium cyanamide, aceticacid, acetaldehydr, ethylacetate, cyanideacetate, dicyandiamide, acetone, octanol, trichloride ethylene tec. Also used as desulfurizer and dehydrant of steel and for cutting and welding metals. 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 release heat. Specifications of calcium carbide: National Standard GB10665-89 PREMIUM GRADE L/KG >: 305 pH3% (V/V): 0.06 H2S % (V/V): 0.10 FIRST GRADE L/KG: >295 pH3% (V/V): 0.08 H2S % (V/V): 0.10 (SALABLE)SALABLE L/KG: >285 pH3% (V/V): 0.09 H2S % (V/V): 0.13