Calcium carbide CAS NO.75-20-7

Calcium carbide (CaC2), is a crystalline substance. Besides the calcium carbide, it contains in small amounts: aluminium carbide, aluminium nitride, c…

Calcium carbide (CaC2), is a crystalline substance. Besides the calcium carbide, it contains in small amounts: aluminium carbide, aluminium nitride, calcium phosphide and sulphide, magnesium and aluminium oxides, magnesium-aluminium silicates, free carbon and ferro-silicon. Molecular weight: 64,1 g/mol CAS number: 75-20-7 EINECS number: 200-848-3 PROPERTIES Fresh calcium carbide is of a violet-red colour that appears blue-violet on the fracture, is a strong hygroscopic substance and is decomposed already in the air, odour like garlic similar to acetylene. In the case of contact with water and damp surroundings, easily inflammable gaseous acetylene is released and explosive compounds with air are rapidly formed.