The dezincification of 60/40 brass has been studied in acidic chloride and sulfate solutions under accelerated experimental conditions using weight loss and potential measurement techniques. A particular variation of potential with immersion time was observed to be the characteristic feature of dezincification. The results obtained support substantially the operation of both selective dissolution of zinc, and simultaneous dissolution of copper and zinc followed by redeposition of copper, alternatively with time, during dezincification. The effect of surface active compounds such as thiourea, thioglycolic acid, thioglycol, and halo-acetic acids on dezincification of brass has been discussed on the basis of models proposed for synergistic effects of organic molecules and anions involved in the medium. -- AATA