AWWA WQTC63965

This study defines the role of phosphate in mitigation of copper pitting corrosion in synthesized water. Phosphates did not have an effect at pH 7.7 and were found to reduce electrochemical indications of pitting in the synthetic water at the pH of 8.3. Phosphates had lesser benefits at higher pH, but overall, even at pHs as high as 10, some benefits from orthophosphate dosing might be anticipated. Includes 14 references, table, figures.