Gold → Gold Sulfite
Reaction equation
[S:1]([O-:4])([O-:3])=[O:2].[Au+3:5].[Na+].[S:7]([O-:10])([O-:9])=[O:8].[S:11]([O-:14])([O-:13])=[O:12].[Na+].[Na+].[As].[Au]>[Cd]>[S:1]([O-:4])([O-:3])=[O:2].[Au+3:5].[S:7]([O-:10])([O-:9])=[O:8].[S:11]([O-:14])([O-:13])=[O:12].[Au+3:5]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A typical sulfite electroplating bath is an aqueous solution including sodium gold sulfite, about 5 to 10 troy ounces per gallon (41.1 to 82.2 grams per liter) of sodium sulfite, and brighteners such as arsenic or cadmium metal in amounts up to about 500 ppm. The aqueous solution usually has a pH of 8 to 12 and contains between one-quarter to 3 troy ounces per gallon (2.1 to 24.7 grams per liter) of gold.
Workup
- customA typical sulfite electroplating bath is
Sources & evidence
- ORD record
- ord-af3fc463b6df4498b7cc3c5d9a9db7ac
- Source dataset
- uspto-grants-1978_05
- Patent number
- US04092154
Reaction notes
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