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  • Aqua regia
    ...m: Pt + 4 HNO3 + 6 HCl → H2PtCl6 + 4 NO2 + 4 H2O }} ([[hexachloroplatinic acid]]) * {{#Chem: Au + 3 HNO3 + 4 HCl --> HAuCl4 + 3 NO2 + 3 H2O }} (Chloroauric acid)
    1,002 bytes (125 words) - 13:43, 26 June 2019
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