Calcium carbide, CaC

Calcium carbide (CaC ) has a garlic-like odor and reacts with water to form acetylene gas plus calcium hydroxide and heat. In the past, it was used in miners lamps to continuously produce a small acetylene flame to provide some illumination in coal mines. [Pg.75]

Acetylene can be produced by pyrolysis of coal and by fuel-rich combustion of alkanes, a process that also produces soot or carbon black, the major ingredient in automobile tires. Acetylene can also be made with nearly stoichiometric efiiciency by decomposing calcium carbide, CaC, which is produced by pyrolyzing limestone and coke,... [Pg.148]

Problem 8.11 Industrially, acetylene is made from calcium carbide, CaC, + 2HjO- HC CH + Ca(OH),. [Pg.145]

Calcium Cyanamide, Nitrolime, Kalkstickstoff, CaN.,C. — Calcium carbide, CaC. which has been manufactured for many years for the production of acetylene gas, unites with nitrogen when heated with it to about 1000° C-, forming calcium cyanamide, CaG, + 2N = CaN2C + C. [Pg.61]

Process of Manufacture.—The calcium carbide, CaC., used for -making the nitrolime is made by heating together in an electric furnace at about 3000 C., a mixture of lime and anthracite coal in the manner described in Martin s Industrial Chemistry, Vol. II. The molten carbide is tapped off from the furnaces at intervals of 45 minutes, conveyed on trays to a cooling bed, then it is crushed to a powder in special grinding plant. [Pg.61]

Ethyne, CH = CH commonly known as acetylenes in the first number of this series and is prepared in the laboratory by the action of water on calcium carbide (CaC )... [Pg.251]

In 1862, Friedrich Wohler discovered calcium carbide CaC by heating carbon with an aiioy of zinc and caicium. He then synthesized acetylene by allcwing the calcium carbide to react with water ... [Pg.325]

Calcium carbide CaC basic - n chemical reaction Impossible to regenerate. Risk of explosion with the evolved acetylene. [Pg.1096]

Calcium carbide (CaC reacts with water to form acetylene (C2H2) and Ca(OH)2- From the following enthalpy of reaction data and data in Appendix C, calculate AHj for CaC2(s) ... [Pg.193]

Mixed bonding types. Write Lewis frrrmulas consistent with the octet rule for the following ionic compounds (a) calcium carbide, CaC (b) sodium peroxide, NajOz (c) magnesium cyanide, MgfCN) (d) sodium formate, NaHCO. ... [Pg.145]

Acetylene. Acetylene is produced when calcium carbide, CaC , reacts with water. The other product is Ca(OH)j. Write an equation for the reaction. What category of reaction is this How is CaCj related chemically to acetylene ... [Pg.508]

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