Inhibition of corrosion in aqueous systems
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United States of America Patent
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Apr 30, 2002
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N/A
app pub date -
May 3, 1999
filing date -
May 3, 1999
priority date (Note) -
Expired
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Abstract
A method and composition for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a combination of (a) a tetrazolium salt of the general formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 may be various organic or inorganic substituents, including monomers or oligomers of the above structure, and (b) polyacrylic or polymaleic acid.
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