INFLUENCE OF THIOUREA ON CORROSION BEHAVIOR OF IRON IN H_2SO_4 SOLUTION

J Chin Soc Corr Pro

1996, Vol. 16

Issue (1): 53-58 DOI:

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INFLUENCE OF THIOUREA ON CORROSION BEHAVIOR OF IRON IN H_2SO_4 SOLUTION

Dong Junhua;Song Guangling;Lin Haicao;Cao Chunan

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Abstract The corrosion behavior of iron electrode in H2SO4 containing thioures（C 0．1 mmol／L）was investigated with polarization curves and EIS method．Various electrochemical parameters involved were obtained．The results showed that，the rate determining step（r．d．s）for anodic dissolution reaction of iron in low polarization region was a nucleophilic additive reaction,and the corresponding kinetics parameters were VTU=1,ba≈60mV.The r.d.s for its catbodic process was a Heyrovshky Heyrovsky reaction,and the kinetics parameters were：VTU＝－0．5，VH+=1．5，bc≈－82mV．

Received: 25 February 1996

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Dong Junhua;Song Guangling;Lin Haicao;Cao Chunan. INFLUENCE OF THIOUREA ON CORROSION BEHAVIOR OF IRON IN H_2SO_4 SOLUTION. J Chin Soc Corr Pro, 1996, 16(1): 53-58.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1996/V16/I1/53

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