carbide, calcium carbide
- A compound (CaC2) of grayish color that reacts with water to produce acetylene gas and calcium hydroxide [Ca(OH)2] .Commonly used by cavers and miners earlier in this century as a means of providing light in caves or mines. Some cavers still prefer carbide lights over electric lights.See also carbide lamp.
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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Carbide lamp — Carbide lamps, also known as acetylene gas lamps, are simple lamps that produce and burn acetylene (C2H2) which is created by the reaction of calcium carbide (CaC2) with water.These lamps were used in mines after the re invention of the medium in … Wikipedia
Calcium cyanamide — IUPAC name Calcium cyanamide … Wikipedia
Calcium — (pronEng|ˈkælsiəm) is the chemical element with the symbol Ca and atomic number 20. It has an atomic mass of 40.078. Calcium is a soft grey alkaline earth metal, and is the fifth most abundant element by mass in the Earth s crust. Calcium is also … Wikipedia
Carbide — [lateinisch], Singular Carbid das, (e)s, chemische Verbindungen von Elementen mit Kohlenstoff; sie werden allgemeinen in die Gruppen der salzartigen, kovalenten und metallischen Carbide unterteilt. Die salzartigen Carbide sind ionisch… … Universal-Lexikon
calcium carbide — n. a dark gray, crystalline compound, CaC2, used to produce acetylene and calcium cyanamide … English World dictionary
carbide — [kär′bīd΄] n. [ CARB + IDE] a solid compound of an element, usually a metal, with carbon; esp., calcium carbide … English World dictionary
Calcium carbide — Chembox new Name = Calcium carbide ImageFile = Carbid.jpg ImageSize = 200px ImageName = Calcium Carbide IUPACName = Calcium Carbide OtherNames = Section1 = Chembox Identifiers CASNo = 75 20 7 Section2 = Chembox Properties Formula = CaC2 MolarMass … Wikipedia
carbide — /kahr buyd, bid/, n. 1. a compound of carbon with a more electropositive element or group. 2. See calcium carbide. 3. a very hard mixture of sintered carbides of various heavy metals, esp. tungsten carbide, used for cutting edges and dies. [1860… … Universalium
Carbide — For the software development tool targeting the Symbian OS, see Carbide.c++. Calcium carbide. In chemistry, a carbide is a compound composed of carbon and a less electronegative element. Carbides can be generally classified by chemical bonding… … Wikipedia
calcium — /kal see euhm/, n. Chem., Biol. a silver white divalent metal, occurring combined in limestone, chalk, gypsum, etc., occurring also in vertebrates and other animals, as a component of bone, skeletal mass, shell, etc., and as a necessary element… … Universalium
calcium cyanamide — noun also calcium cyanamid : a compound CaCN2 obtained in impure cokelike form by passing dry nitrogen over calcium carbide at about 1100° C and used chiefly as a fertilizer, as a weed killer, in the defoliation of crops (as cotton), and as a… … Useful english dictionary