MAGNESIUM M AGNESIUM , lightest of the common metals and silvery- white in colour, is the element usually associated with photographers' "flash powder' and incendiary bombs. It is produced by the electrolysis of ma gnesium chloride-a com- pound made either from seawater; ma gnesium-containing brine or mineral deposits of magnesia-and by the thermal reduction of dolomite, a mineral which occurs abundantly in most indus- trial countries. By far the most important use of magnesium is in the manufacture of castings and wrought alloys for the air- craft and motor industries. It is also used to increase the strength of certain aluminium alloys. Compounds of the element; such as magnesium sulphate (Epsom salts ) and magnesium oxide (magnesia ) , are well-known in medicine. Others are used in the production of rapid-hardening cements, in the rubber industry, in sugar refining and in paper-making; French chakk; meerschaum, asbestos and steatite are all com- pounds of magnesium: In addition to making electrical insulators of steatite, ICI uses magnesium in the manufacture of the aluminium alloys that are used So extensively in the construction of aircraft and in building and engineering: ICL IMPERIAL CHEMICAL INDUSTRIES (NZ) LTD: A Vital" 6 s cAKES Difference [vmax | Vi-Max made from selected wheat Andi with extra wheat germ added is not devitalised: It is, therefore, or COARSE ideal for porridge and for baking, "FINE especially where there are growing children. Order VI-MAX; V-BRAN and VIMEAL from your grocer: Made by D. H. Brown & Son , Ltd:. Moorhouse Avenue; Christchurch: CuiTS ORRiDGE Mimax (OreakfAST [ Maximu
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New Zealand Listener, Volume 29, Issue 730, 10 July 1953, Page 26
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251Page 26 Advertisement 2 New Zealand Listener, Volume 29, Issue 730, 10 July 1953, Page 26
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