Corrosion inhibitor

Details Corrosion inhibitor Corrosion inhibitor

C - Chemistry, Metallurgy

23

F

31/45

C23F 11/12 (2006.01) C23F 11/08 (2006.01)

Patent

CA 1176049

ABSTRACT OF THE DISCLOSURE A corrosion inhibitor for ferrous metals com- prizing four different components of (a) an inorganic acid component (such as molybdate or tungstate), (b) an alipha- tic hydroxycarboxylic or aliphatic dicarboxylic acid or its salt (such as citric acid, gluconic acid or succinic acid), (c) an inorganic heavy metal compound (such as zinc chloride or stannous chloride) and (d) a water soluble polymer component having a mlecular weight of 500 - 100,000 (such as acylic homo or copolymer), which is especially advantageous for use in water recycling system.

415827

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