METHOD OF OBTAINING A YELLOW GOLD ALLOY DEPOSITION BY GALVANOPLASTY WITHOUT USING TOXIC MATERIALS
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United States of America Patent
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Issued Date -
Apr 21, 2011
app pub date -
Oct 15, 2010
filing date -
Oct 15, 2009
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Abstract
The invention relates to a method of galvanoplastic deposition of a gold alloy on an electrode dipped into a bath including metal gold in alkaline aurocyanide form, organometallic compounds, a wetting agent, a sequestering agent and free cyanide. According to the invention, the alloy metals are copper, in double copper and potassium cyanide form, and silver in cyanide form, allowing a mirror bright yellow gold alloy to be deposited on the electrode.The invention concerns the field of galvanic depositions.
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