Product Name: Calcium Carbide
Molecular Formula: CaC2
Molecular Weight: 64.10
Size: 4-25MM, 15-25MM, 25-50MM, 50-80MM
CAS No.: 75-20-7
HS Code: 2849100000
Property: Colorless crystals, industrial is grey lumps, the color of the section is purple or grey. It has a strong reaction with water, then release acetylene. So the most importent usage of calcium carbide is to make acetylene.
Use: Reacting with water to bring about ethine. Reacting with nitrogen to product lime nitrogen. The desulfurizer in steel industry.
Storage: It should be stored in a dry, cool and ventilated place, avoid meeting water and moisture. It should be separated from acid and alcohol.

Items		Index
		Top quality	First quality	Qualified products
gas release (20° C? 101.3 kPa)/(L/kg) ≥ 50-80mm		300	280	255
gas release (20° C? 101.3 kPa)/(L/kg) ≥ 25-50mm		300	280	250
gas release (20° C? 101.3 kPa)/(L/kg) ≥ 15-25mm		300	280	250
Phosphine’ s volume fraction in acetylene /% ≤		0.06	0.08
Sulfureted hydrogen’ s volume fraction in acetylene /% ≤		0.1
Granularity (5mm-80mm)a’ s mass fraction /% ≥		85
Screenings (below 2.5mm)’ s mass fraction /% ≤		5