Reliable Manufactutre! High Quality Calcium Carbide for Welding
Other NamesCalcium Carbide
EINECS No. 200-848-3
Place of OriginHebei, China (Mainland)
Grade StandardIndustrial Grade, Medicine Grade, Agriculture Grade, Reagent Grade
Appearanceblack massive objects
Applicationindustrial acetylene gas
Granule4-25mm / 15-25mm / 25-50mm / 50-80mm / 80-120mm
Gas Yield295 l/kg calcium carbide (CaC2)
UN NO. 1402
HS NO. 28491400
Applications of calcium carbide
1 Production of acetylene
The reaction of calcium carbide with water, producing acetylene and calcium hydroxide, was discovered byFriedrich Wö Hler in 1862.
CaC2 + 2 H2O C2H2 + Ca(OH)2
This reaction was the basis of the industrial manufacture of acetylene, and is the major industrial use of calcium carbide.
2 Production of calcium cyanamide
Calcium carbide reacts with nitrogen at high temperature to form calcium cyanamide:
CaC2 + N2 CaCN2 + C
Calcium cyanamide is used as fertilizer. It is hydrolysed to cyanamide, H2NCN.
3 Other uses
In the artificial ripening of fruit, calcium carbide is sometimes used as source of acetylene gas, which is a ripening agent similar toethylene. However, this is illegal as consumption of fruits artificially ripened using calcium carbide can cause serious health problems in those who partake them.
|1. Name||Calcium Carbide|
|2. Molecular formula||CaC2|
|3. UN NO.||1402|
|5. HS code||28491000|
|6. Gas yield20 101.3 Kpa||≥295L/KG|
|9. Molecular weight||64.10 (according to 1995 international relative atomic mass)|
|11. Packing||50kg or 100kg iron drum|