INHIBITION OF PROPARGYL ALCOHOL ON IRON CORROSION IN h2s-CONTAINING SULFURIC ACID SOLUTIONS

J Chin Soc Corr Pro

1999, Vol. 19

Issue (4): 221-226 DOI:

Research Report

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INHIBITION OF PROPARGYL ALCOHOL ON IRON CORROSION IN h2s-CONTAINING SULFURIC ACID SOLUTIONS

Lijing Yan;;

中科院金属腐蚀与防护研究所电化学室

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Abstract The inhibition of propargyl alcohol (PA) on iron corrosion in H2S-containing sulfuric acid solutions has been studied using electrochemical potentiodynamic polarization method and impedance measurements.The results showed that PA could greatly retard the corrosion of iron in sulfuric acid containing H2S, which was attributed mainly to the inhibition effect of PA on the anodic dissolution reaction of iron.It wa also found that PA performed its function effectively when the temperature of solution wa between 30℃ to 65℃.However,the ingibition effect of PA decreased enormously ofr the temperature higher than 65℃.In addition,a polymer film of PA could gradually form on iron surface,and its protective ability was related with the surface state of corroded iron.H2S could influence the polymerization of PA and damage the comeatibility and integrity of the polymer.

Key words: iron H2S propargyl alcohol inhibition effect

Received: 13 October 1998

Corresponding Authors: Lijing Yan

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Lijing Yan. INHIBITION OF PROPARGYL ALCOHOL ON IRON CORROSION IN h2s-CONTAINING SULFURIC ACID SOLUTIONS. J Chin Soc Corr Pro, 1999, 19(4): 221-226 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1999/V19/I4/221

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2　YangB ,SmartNG ,BockrisJO′M .Electrochim .Acta .,1 992 ,3 7:3 1 7　
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7　曹楚南 .腐蚀科学与防护技术 ,1 990 ,2 :1　
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1 0　BartosM ,HackermanN .J.Electrochem .Soc.,1 992 ,1 3 9:3 42 8　
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