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J Chin Soc Corr Pro  1992, Vol. 12 Issue (1): 95-100    DOI:
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A STUDY OF INHIBITION EFFECT OF BICARBOXYLATE ON CARBON STEEL
Lin Zhicheng; Li Ming; Huang Xinghua; and Wei Xiaohui ( Hunan University)
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Abstract  The corrosion inhibition and adsorption of biearboxylate on carbon steel in pH=9 carbonate-bicarbonate buffer solution at 25℃ has been investigated by weight loss method and electrochemical technique. Results show that the corrosion inhibition and adsorption of bicarboxylates decrease according to the following order: azelaic acid>sebacic acid>pimelic acid>suberic acid>adipic acid There is a zigzag relationship between the inhibition efficiency and the number of carbon atoms in bicarboxylate molecules, i. e. the bicarboxylie acid which contains odd number of carbon atoms is more efficient than the neighbouring acid whiates on carbon steel follows modified Bockris-Swinkels isotherm. The effects of the molecular structure of bicarboxylates on the corrosion inhibition and adsorption are also discussed.
Received:  25 February 1992     
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Lin Zhicheng; Li Ming; Huang Xinghua; and Wei Xiaohui ( Hunan University). A STUDY OF INHIBITION EFFECT OF BICARBOXYLATE ON CARBON STEEL. J Chin Soc Corr Pro, 1992, 12(1): 95-100.

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