Copper Electropolishing in Phosphoric Acid under Normal and Forced Convection Conditions in Presence of Some Pharmaceutical Drugs

Some pharmaceutical drugs namely valsartan, hydrocholorothiazide, erythromycin thiocynate and diclofenac potassium were studied as chemical additions for enhancing the finished copper surface attained. Anode potential-limiting current relationship was measured and comparing of gradually increasing pharmaceutical compound concentrations (from 1 × 10-4 to 7 × 10-4 M). Copper dissolution behaviour in presence of pharmaceutical compounds was studied...