1. Calcium carbide factory 2. Competitive price 3. ISO 9001 4. Gas yield 295L/KG min 5. Packing: 50kgs,100kgs/iron drum etc Products descriptionCalcium carbide 1. specification:NameCalcium carbideMolecular formulaCaC2UN1402Class4.3HS code28491000Gas yield20 101.3 Kpa≥295L/KGPH3(V/V)≤0.08%H2S(V/V)≤0.1%Molecular weight64.10 (according to 1995 international relative atomic mass)SIZE4-7,7-15,15-25,25 ...