Corrosion inhibitor for salt-based deicing compositions

Details Corrosion inhibitor for salt-based deicing compositions Corrosion inhibitor for salt-based deicing compositions

C - Chemistry, Metallurgy

09

K

31/80

C09K 3/18 (2006.01) C23F 11/18 (2006.01)

Patent

CA 1315971

ABSTRACT OF THE DISCLOSURE A deicing composition is provided which com- prises a solid mixture of sodium chloride and a corro- sion inhibitor comprising a water-soluble divalent metal ion and an alkali metal polyphosphate selected from the group consisting of tripolyphosphate, pyro- phosphate, hexametaphosphate and mixtures thereof, wherein the inhibitor is present in an amount effective to reduce the rate of corrosion of ferrous metals by aqueous sodium chloride solutions.

580164

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