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| | Calcium Carbides Basic information |
| | Calcium Carbides Chemical Properties |
| | Calcium Carbides Usage And Synthesis |
| Description | Calcium carbide has the nominal formula of CaC2
and the molecular weight of 64.0992 g/mol. The pure
material is colorless, but most samples have a color
ranging from black to grayish-white, depending on the
grade. Its density is 2.22 g/cc and it melts at 2160°C
with a boiling point (under an inert atmosphere) of
2300°C, where it decomposes. Its main use industrially
is in the production of acetylene and calcium cyanamide,
CaCN2. | | Uses | Calcium cyanamide is used as fertilizer.
in the “desulfurization” of iron (pig iron, cast iron and
steel).
? as a fuel in steelmaking to extend the scrap ratio to
liquid iron, depending on economics.
? as a powerful deoxidizer in steel at ladle treatment
facilities.
? was used in carbide lamps, in which water drips on
the carbide and the acetylene formed is ignited.
? in the ripening of fruit. Calcium carbide is used as
source of acetylene gas, which is a ripening agent.
? in toy cannons where the acetylene is set off by an
applied spark to create a loud “boom”.
? as floating, self-igniting naval flares for use as signals. | | Preparation | Calcium carbide is produced industrially
in an electric-arc furnace from a mixture of CaCO3 and coke (carbon) at approximately 2000°C. |
| | Calcium Carbides Preparation Products And Raw materials |
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