MAGNESIUM

(Lat.), n. n. Ma2g(ma3g)-ne(ua)'zi2(si2)-u3m(u4m). For deriv., see MAGNESIA. Fr., magnesium, magnesie. Ger., M. Originally manganese; now a distinct bivalent metallic element discovered by Davy in 1808. and denominated magnium. It was first isolated in the pure state by Bu y in 1830. and is a silvery white metal, which readily oxidizes in moist air, is both malleable and ductile, melts at a red heat, and, on ignition, burns with a brilliant white light, particularly rich in chemical rays. It occurs extensively distributed throughput the mineral kingdom, and is also present in small quantities in animal and vegetable organisms. Atomic weight, 23'94. Symbol, Mg. Sp. gr., 1'75. [B, 3.] An timons aures M. (Ger.). M. antimonate. [B.] Ammoniacal m. phosphate. See M. and ammonium phosphate. Arsenigsaures M. (Ger.). M. arsenite. [B.] Arsensaures M. (Ger.). M. arsenate. [B.] Basic m. carbonate. Ger., basisch.es kohl ens aures M., basis cher kohlensaure Magnesia. See under M. carbonate. Breifbrmiges M'hydrat (Ger.). See M. hydricum pultiforme. Bromm' (Ger.). SeeAf. bromide. Bromsaures M. (Ger!). See M. bromate. Chlorm' (Ger.). See M. chloride. Chlorsaures M. (Ger.). Magnesium chlorate. [B.] Dihydrlc m. orthophosphate. A body, H.jMg2.(PO4).! (or HMg.PO4), forming acicular crystals, and usually a ociated with 7 molecules of water of crystallization. [B.] Dried m. sulphate. Lat., m. sulfur i cum siccum [Ger. Ph., Swi Ph.], magnesia sulfuric a sicca [Ru . Ph.]. A fine, white, loose powder obtained by heating crystallized m. sulphate until most of the water it contains is driven off. [B, 95 (a, 38).] Effervescing m. citrate. See Magnes i i citras effervescens. Elixir n i agues i i a cet at is. A preparation consisting of 66 parts of solution of m. acetate, 14 of alcohol, and 70 of syrup of orange- (or lemon-) peel. It contains 25 per cent, of the salt. [B. 81 (a, 38).] Enema magnes i i sulph at is [Br. Ph.]. An enema consisting of 1 part each of m. sulphate and olive-oil and 15 parts of starch mucilage. [B, 81.] E igsaures M. (Ger.). See M. acetate. Granulated m. citrate [U. S. Ph.]. See, Magnes i i citras granulatus. Heavy m. carbonate. Lat., magnes i i (seu magnes ice) carbon as ponderosa [Br. Ph.], carbon as magnesic us [Dan. Ph.], magnesium carbon i cum ponderosum [Fr. Cod., Norw. Ph., Swed. Ph.], magnesia alba ponderosa. A preparation made by di olving 10 parts of m. sulphate in 20 of boiling water and 12 of sodium carbonate in 20 of boiling water, mixing the two, evaporating to dryne in the sand-bath, digesting the remainder half an hour with water, washing thoroughly, and drying at a temperature not over 100 C. [Br. Ph.]. The Fr. Cod. also orders boiling water. The Dan. Ph., Norw. Ph., and Swed. Ph. direct the mixture together of cold solutions of 6 parts of m. sulphate in 18 of water, and 7 parts of sodium carbonate in 21 of water, the mixture to be allowed to stand some days till a fine crystalline powder is obtained, which is then washed and dried. [B, 95 (a, 38).] Cf. M. carbonate and MAGNESIA ponderosa. Hydrogen m. phosphate. See Dihydric m. orthophosphate. Jodm' (Ger.). See M. iodide. Jodsaures M. (Ger.). See M. iodate. Kieselsaures M. (Ger.). M. silicate. [B.] Kohl ens aures M. (Ger.), Kohl ens aures M'hydroxyd (Ger.). See M. carbonate. Light m. carbonate. See M. carbonate. Limonada magnes i i citric! effervescens. See Liquor magnes i i citratis. Liquor magnes i i bromide. An aqueous solution of m. bromide; used as a sedative in insanity. [" Am. Jour, of Pharm.," Nov., 1886. p. 537 (a, 50).] Liquor magnes i i carbon at is [Br Ph.]. Solution of cabonate of m.; made by di olving extemporaneously prepared basic m. carbonate in water charged with caroon dioxide. It contains 13 grains of the basic carbonate to the fluid ounce. [B, 81.] Liquor magnes i i citratis [U. S. Ph., Br. Ph.] (seu citric i). Fr., limonade purgative au citrate de magnesie gazeuse [Fr. Cod.]. Ger., schaumende citrons a ure Magnesia limonade. Sp., pocion de citrato magnesico gaseosa [Sp. Ph.]. Syn.: limonada citratis magnes ice aerata [Belg. Ph.], limonata aerata laxans [Swi Ph.], potio magnes ice. citricce aerophora [Ru . Ph.] (seu effervescens [Austr. Ph., Hung. Ph.]), potio citric a purgans [Austr. Ph.]. A preparation made by introducing pota ium or sodium bicarbonate into a solution of m. citrate, and sealing hermetically. The U. S. preparation contains 26 grammes of citric acid, 13 of m. carbonate, too; U2, blue; U3, lull; U 4, full; U6, urn; U, like U (German). [s. 691]