Four formulations were suggested to reduce the corrosion rate when added to both fresh and salt Formulated according to VCI technology, these products include inhibitors for multi-metal protection in liquid, vapor and interface liquid-vapor phase. The performance of the products was evaluated at different temperatures in the immersion test and electrochemical techniques. The synergistic effect often components in formulations was studied using infra-red spectroscopy.The protection ability vs.concentration was studied for the additive for an open loop cooling system(OCA).
Keywords: vapor corrosion inhibitors(VCI), water treatment additives,electrochemical tecluiques, salt oxicarbonic acid, amino carboxylate, water soluble sulfonate, organophosphonates, triazoles