Calcium carbide, also known as calcium acetylide, is a chemical compound with the chemical formula of CaC2. Its main use industrially is in the production of acetylene and calcium cyanamide.
The pure material is colourless, while pieces of technical-grade calcium carbide are grey or brown and consist of about 80–85% of CaC2 (the rest is CaO (calcium oxide), Ca3P2 (calcium phosphide), CaS (calcium sulfide), Ca3N2 (calcium nitride), SiC (silicon carbide), etc.). In the presence of trace moisture, technical-grade calcium carbide emits an unpleasant odour reminiscent of garlic.
Molecular Formula: CaC2
Molecular Weight: 64.09
Thickness: <10mm
Melting Point: 2300°C
Cas Number: 75-20-7
Einecs Number: 200-848-3
UN Number: 1402
Hazard Phrases: H261,H315,H318,H335
Prec Phrases: P231+P232,P260,P303+P361+P353,P305+P351+P338,P405,P501A
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