Corrosion inhibition of carbon-steels by propargyltriphenylphosphonium bromide in H2SO4 solution

Wahdan MH.; Hermas AA.; Morad MS.

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Corrosion inhibition of carbon-steels by propargyltriphenylphosphonium bromide in H2SO4 solution

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The inhibition effect of propargyltriphenylphosphonium bromide (PgTPhPBr), with a structure (CHdropC-CH2-)(C6H5-)(3) P+Br, on the electrochemical and corrosion behavior of three 0.1, 0.5 and 1.0 C-steels and pure iron in deaerated 1 M H2SO4 solution at different temperatures was studied using linear polarization resistance, polarization curves and SEM investigations. It was found that 0.5 C-steel (CS2) has high density of active sites on the surface leading to high corrosion rate. PgTPhPBr acted as a mixed type inhibitor with anodic predominance in case of pure iron and a mixed type inhibitor in case of C-steels. The inhibition efficiency of PgTPhPBr increased with increasing temperature up to 60degreesC. Adsorption of the inhibitor was found to follow the Langmuir's isotherm. This inhibitor was more efficient for CS2 than for other samples at different temperatures. It was proposed that PgTPhPBr decreases the corrosion rate through the reduction mechanism of metal reactivity. (C) 2002 Elsevier Science B.V. All rights reserved. References: 26

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《Materials Chemistry and Physics》 |2002年第2期|111-118|共8页
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Wahdan MH.; Hermas AA.; Morad MS.;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种英语
中图分类工程材料学;工程基础科学;
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机译：ChemInform Abstract: Inhibition of Ni Corrosion in H2SO4 Solutions Containing Simple Non‐ Saturated Substances.
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机译：Clarification of The Corrosion Inhibition of Mild Steel in Hydrochloric Acid Solutions via Cetyltrimethyl Ammonium Bromide Inhibitor
3. Inhibition of the corrosion of iron in acidic solution by the oligomeric surfactant N, N, N', N", N"-pentamethyl diethyleneamine-N, N"-di-tetradecylammonium bromide [J] . Fatima Bensajjay, Saliha Alehyen, Mohammed El AchouriNajat HajjajiAbdelkbir BellaouchouLourdes PerezMaria Rosa Infante Anti-Corrosion Methods and Materials . 2011,第5期

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Corrosion inhibition of carbon-steels by propargyltriphenylphosphonium bromide in H2SO4 solution

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