Gold plating solution containing gold sulfite and replenisher for gold plating solution containing gold sulfite

摘要

PROBLEM TO BE SOLVED: To provide a gold plating solution and a replenisher solution for a gold plating solution capable of solving the problem of variation in plating performance. SOLUTION: The problem is solved by a non-cyanide gold plating solution and a replenisher for cyanide gold plating solution containing a gold sulfite salt, an electrolyte and water and having a cyanide ion concentration of 1 mg / L or less. [Selection diagram] None