Dictionary of Chemistry [6th Ed.]
ions react with soap to give scum. Calcium hydrogencarbonate is unsta- ble when heated and decomposes to give solid calcium carb ...
facture of certain paints, ceramics, and paper. The naturally occurring forms are used in the manufacture of sulphuric acid. Cal ...
(kJ g–1), although Calories (kilocalo- ries) are often still used in nontechni- cal contexts. CaloriÜc values are measured using ...
known as hashish. The normal method of using cannabis is to smoke it, although it can also be taken in certain foods. Cannabis i ...
C 6 H 11 NO; r.d. 1.02; m.p. 69–71°C; b.p. 139 °C. It is a *lactam containing the –NH.CO– group withÜve CH 2 groups making up th ...
carbides in which the carbon atoms occupy interstitial positions in the metal lattice. These substances are generally hard mater ...
conductor of heat and electricity. It has a variety of uses including electri- cal contacts, high-temperature equip- ment, and a ...
A method of estimating the ages of archaeological specimens of biologi- cal origin. As a result of cosmic radia- tion a small nu ...
solves in water to give *carbonic acid. Large quantities of solid carbon dioxide (dry ice) are used in processes requiring large ...
p-orbitals in bonding with metals; the stabilization of low oxidation states, including the zero state, is a consequence of this ...
merly, carbynes were called methyli- dynes. carcinogen Any agent that pro- duces cancer, e.g. tobacco smoke, certain industrial ...
Caro’s acid See peroxo- sulphuric(vi) acid. carotene A member of a class of *carotenoid pigments. Examples are β-carotene and ly ...
ally because the single step is too inefÜcient to produce the desired re- sult. For example, in various ura- nium-enrichment pro ...
ganisms to smaller ones, with the re- lease of energy. Respiration is an ex- ample of a catabolic series of reactions. See metab ...
chains of atoms in chemical com- pounds. 2.The formation of a *cate- nane compound by mechanical bonding. cathetometerA telescop ...
are the absorption intensities for right- and left-circularly polarized light, respectively. One application of CD spectroscopy ...
exist, used as sources of current, standards of potential, and experi- mental set-ups for studying electro- chemical reactions. ...
temperatures at standard pressure of ice in equilibrium with water (0°C) and water in equilibrium with steam (100°C). The scale, ...
due to the presence of impurities. It forms well-shaped orthorhombic crystals. It occurs in the USA, Spain, and SW Africa. cetan ...
mixed copper–iron sulphide, CuFeS 2 , crystallizing in the tetragonal sys- tem; the principal ore of copper. It is similar in ap ...
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