Tarnished silver ornaments will mmkh disappear. Rhodium, a precious of the platinum group, is immune fNH|H volatile acids as well as mould iMS atmospheric influences. Canada. wMBKial It is mined extensively, yielded l|M year 25,000oz—flve«sizth of the wofßl output It costs £ls an twice as much as platinum « A rhodium film sprayed on ajpHMH of silverware is virtually indmUliiM tible. There is no danger of it* <*' ,jMI ing undo heat melting, or eorroMBBH At Acton, London, where a rMjMH refinery has been started, re*eaj™™ workers are etui exploring
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Press, Volume LXXII, Issue 21940, 14 November 1936, Page 12
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88Page 12 Advertisements Column 1 Press, Volume LXXII, Issue 21940, 14 November 1936, Page 12
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