Question

2.14 In electroplating gold on brass, what is the
electrolyte used ?​

Answer 1

Answer:

Usually gold is complexed with cyanide, called cyanaurate, although techniques using sulfites and thiosulfites exist. There are many proprietary formulae for these solutions. In tank electroplating, cyanaurate is dissolved in an acidic bath that receives the electrodes.

Explanation:

Answer 2

Answer:

Traditionally, gold has been plated from gold cyanide electrolytes, where (Au+) is ligated with cyanide (CN-). The cyanide bath is exceptionally stable with the stability constant of AuCN being 1038 [38].

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