SUITABLE COMPOSITION TO INHIBIT CORROSION OF AN IRON-BASED METAL IN CONTACT WITH A WATER SYSTEM SYSTEM'S WATER, AND PROCESS TO INHIBE CORROSION OF AN IRON-BASED METAL IN CONTACT WITH THE SYSTEM WATER OF A SYSTEM OF A SYSTEM WATERFUL SYSTEM

摘要

A process and composition using hydroxyphosphonoacetic acid or its water-soluble salts in combination with certain copolymers, such as water-soluble 1-acrylamido-2-methylpropane sulfonic acid copolymers with acrylic acid or methacrylic acid, provide improved corrosion protection for iron based metal in contact with the system water of aqueous systems.