COMPOSITION AND METHOD FOR INHIBITION OF METAL CORROSION

摘要

Carbon dioxide induced corrosion of ferrous metals in aqueous systems is inhibited by treatment of the aqueous system with corrosion inhibiting amino thiol and aminodisulfide compounds. Particularly effective inhibitors are the natural amino acids cysteine and cystine and their decarboxylated analogues cysteamine and cystamine. Novel corrosion inhibiting compositions comprising a combination of amino thiol or amino disulfide compounds with acidic amino acid polymers are also disclosed.