Inhibition of corrosion in sulfuric acid solutions

Details Inhibition of corrosion in sulfuric acid solutions Inhibition of corrosion in sulfuric acid solutions

C - Chemistry, Metallurgy

09

K

31/35

C09K 5/00 (2006.01)

Patent

CA 1046753

ABSTRACT OF THE DISCLOSURE The corrosion of metal surfaces by aqueous sulfuric acid is inhibited by incorporating into the latter a phosphorus compound having a phosphorus atom linked to an unshared oxygen atom. The phosphorus compound, e.g., orthophosphoric acid, is used in amounts ranging from 1 to 10, 000 p.p.m. based on the weight of the aqueous sulfuric acid.

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