Heat Exchanger Neutralizer is a strong alkaline cleaning liquid that is specifically designed for the neutralization of used Heat Exchanger PhosClean RXSOL-51-1011-025 prior to disposal. Principally Heat Exchanger Neutralizer is pH Neutralizer Solution is a high-purity aqueous solution, It is used to increase pH and alkalinity of acidic water and process streams, and to maintain proper operating pH in treatment systems.