Process for making sodium gold sulfite solution

Details Process for making sodium gold sulfite solution Process for making sodium gold sulfite solution

1999-04-30

2000-10-03

Gorgos, Kathryn

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Depositing predominantly single metal coating

205495, 106 126, B22F 700, C09D 500, C09D 510, C23C 1600, C23C 1800

Patent

active

061268070

ABSTRACT:
A process for producing sodium gold sulfite in solution is described. The sodium gold sulfite solution is useful in gold electroplating baths, and can be used in applications which require pure, soft gold deposits. A process is also described whereby the sodium gold sulfite solution can be solidified by a freeze-drying process.

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patent: 4316786 (1982-02-01), Yu et al.
patent: 4372830 (1983-02-01), Law
patent: 5575900 (1996-11-01), Antelman et al.

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