SILVER ELECTRODEPOSITION COMPOSITION AND PROCESS

摘要

Compositions for electrodepositing silver at a current density of at least 800 amperes/square foot, comprising a soluble silver compound, a non-cyanide electrolyte and selected organic phosphonate compounds, are described. These are stable for prolonged periods and are capable of depositing silver at relatively high rates without the need for soluble silver electrodes or cyanide replenishment to the bath, in contrast to conventional procedures.