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Gold is a noble and non-reactive metal. No toxic effects of gold have been described, except skin reactions or allergies.
Gold is used as a surface colour in foods as E175 .
發(fā)布日期：2007-05-28
Gold is a noble and non-reactive metal. No toxic effects of gold have been described, except skin reactions or allergies.
Gold is used as a surface colour in foods as E175 .
