Reduction of gold(III) by ammonia in aqueous solutions at 150°C

被引:0
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作者
Kovalenko, NL [1 ]
Chuprov, VV [1 ]
Pashkov, GL [1 ]
机构
[1] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Div, Krasnoyarsk, Russia
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中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reduction of gold(III) by ammonia in aqueous alkali at 150degreesC was studied by coulometric titration, X-ray powder diffraction, and chemical analysis. The reduction process is described by the equation Au3+ + NH3 + 3OH(-) --> Au-0 + 0.5N(2) + 3H(2)O. The hydroxide ion does not reduce gold(III) in strongly alkaline media at 150degreesC.
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页码:1745 / 1749
页数:5
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