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Citation: Yan Lijing, Lin Haichao, Wu Weitao. Effect of Hydrogen Sulfide on the Inhibition Action of Propargyl Alcohol in Fe/H₂SO₄ System[J]. Chinese Journal of Applied Chemistry, ;1999, 16(3): 1-4. shu

Effect of Hydrogen Sulfide on the Inhibition Action of Propargyl Alcohol in Fe/H₂SO₄ System

1.
Institute of Corrosion and Protection of Metals, State Key Laboratory for Metal Corrosion and Protection, Chinese Academy of Sciences, Shenyang 110015

Received Date: 9 October 1998
Available Online: 17 March 1999
Fund Project: 国家自然科学基金资助项目(59571058) (59571058)

The effect of H₂S on the inhibition action of propargyl alcohol(PA) in Fe/H₂SO₄ system has been investigated by electrochemical potentiodynamic and potentiostatic methods. The results showed that PA could inhibit the anodic and cathodic reactions of iron corrosion effectively in H₂SO₄ solution containing H₂S. At low content of PA the inhibition efficiency decreased with the increase of H₂S content due to the strong interaction of H₂S and HS^- with Fe. At high content of PA, Fe(HS^-)_ads is stabilized owing to the hydrogen bonds and electrostatic action, which made the anodic current approach to zero. The interaction between PA and Fe(H₂S)_ads in this case is weak.
- iron corrosion,
- propargyl alcohol,
- H₂S,
- inhibition effect
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Effect of Hydrogen Sulfide on the Inhibition Action of Propargyl Alcohol in Fe/H2SO4 System

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Effect of Hydrogen Sulfide on the Inhibition Action of Propargyl Alcohol in Fe/H₂SO₄ System