Corrosion suppression of stainless steel caustic soda

Details Corrosion suppression of stainless steel caustic soda Corrosion suppression of stainless steel caustic soda

C - Chemistry, Metallurgy

23

F

C23F 11/06 (2006.01) C01B 6/15 (2006.01) C01D 1/04 (2006.01)

Patent

CA 2076491

Abstract of the Disclosure Disclosed is a method of inhibiting the electrochemical corrosion of stainless steel immersed in aqueous solution of about 20 to about 40 wt% alkali metal hydroxide at a temperature of less than 100°C. About 2 to about 500 ppm of sodium borohydride, hydrazine, or a mixture thereof is added to the aqueous solution.

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