The synergistic inhibition effect of octylmercaptopropionate and 8-quinolinol on the corrosion of iron in an aerated 0.5 M Na2SO4 solution

Tetsuya Suzuki, H. Nishihara, K. Aramaki

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The synergistic inhibition effect of sodium octylmercaptopropionate, C8H17S(CH2)2COONa (SOMP), and 8-quinolinol, C9H6NOH (Ql), on the corrosion of iron in an aerated 0.5M Na2SO4 solution was investigated by polarization measurement, X-ray photo-electron and FTIR spectroscopies and electron-probe micro-analysis. A high inhibition efficiency, 98.2%, was obtained by a mixture of 3 × 10-4 M SOMP and 5 × 10-4 M Ql. It was concluded that the high synergism of the mixture is mostly attributed to coverage of the iron surface with a precipitate layer composed of iron oxide and a chelate of Ql with Fe3+ and with a layer of Fe3+-SOMP complex precipitated at defects preferentially.

Original languageEnglish
Pages (from-to)1223-1234
Number of pages12
JournalCorrosion Science
Volume38
Issue number8
DOIs
Publication statusPublished - 1996 Aug

Fingerprint

Oxyquinoline
Iron
Corrosion
Electron probe microanalysis
Iron oxides
Precipitates
Sodium
Spectroscopy
Polarization
X rays
Defects
Electrons
ferric oxide

Keywords

  • A. low alloy steel
  • B. EPMA
  • B. IR spectroscopy
  • B. polarization
  • B. XPS
  • C. neutral inhibition

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

The synergistic inhibition effect of octylmercaptopropionate and 8-quinolinol on the corrosion of iron in an aerated 0.5 M Na2SO4 solution. / Suzuki, Tetsuya; Nishihara, H.; Aramaki, K.

In: Corrosion Science, Vol. 38, No. 8, 08.1996, p. 1223-1234.

Research output: Contribution to journalArticle

@article{e232a9789f374953a7037d4b8d5a658a,
title = "The synergistic inhibition effect of octylmercaptopropionate and 8-quinolinol on the corrosion of iron in an aerated 0.5 M Na2SO4 solution",
abstract = "The synergistic inhibition effect of sodium octylmercaptopropionate, C8H17S(CH2)2COONa (SOMP), and 8-quinolinol, C9H6NOH (Ql), on the corrosion of iron in an aerated 0.5M Na2SO4 solution was investigated by polarization measurement, X-ray photo-electron and FTIR spectroscopies and electron-probe micro-analysis. A high inhibition efficiency, 98.2{\%}, was obtained by a mixture of 3 × 10-4 M SOMP and 5 × 10-4 M Ql. It was concluded that the high synergism of the mixture is mostly attributed to coverage of the iron surface with a precipitate layer composed of iron oxide and a chelate of Ql with Fe3+ and with a layer of Fe3+-SOMP complex precipitated at defects preferentially.",
keywords = "A. low alloy steel, B. EPMA, B. IR spectroscopy, B. polarization, B. XPS, C. neutral inhibition",
author = "Tetsuya Suzuki and H. Nishihara and K. Aramaki",
year = "1996",
month = "8",
doi = "10.1016/0010-938X(95)00172-G",
language = "English",
volume = "38",
pages = "1223--1234",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Limited",
number = "8",

}

TY - JOUR

T1 - The synergistic inhibition effect of octylmercaptopropionate and 8-quinolinol on the corrosion of iron in an aerated 0.5 M Na2SO4 solution

AU - Suzuki, Tetsuya

AU - Nishihara, H.

AU - Aramaki, K.

PY - 1996/8

Y1 - 1996/8

N2 - The synergistic inhibition effect of sodium octylmercaptopropionate, C8H17S(CH2)2COONa (SOMP), and 8-quinolinol, C9H6NOH (Ql), on the corrosion of iron in an aerated 0.5M Na2SO4 solution was investigated by polarization measurement, X-ray photo-electron and FTIR spectroscopies and electron-probe micro-analysis. A high inhibition efficiency, 98.2%, was obtained by a mixture of 3 × 10-4 M SOMP and 5 × 10-4 M Ql. It was concluded that the high synergism of the mixture is mostly attributed to coverage of the iron surface with a precipitate layer composed of iron oxide and a chelate of Ql with Fe3+ and with a layer of Fe3+-SOMP complex precipitated at defects preferentially.

AB - The synergistic inhibition effect of sodium octylmercaptopropionate, C8H17S(CH2)2COONa (SOMP), and 8-quinolinol, C9H6NOH (Ql), on the corrosion of iron in an aerated 0.5M Na2SO4 solution was investigated by polarization measurement, X-ray photo-electron and FTIR spectroscopies and electron-probe micro-analysis. A high inhibition efficiency, 98.2%, was obtained by a mixture of 3 × 10-4 M SOMP and 5 × 10-4 M Ql. It was concluded that the high synergism of the mixture is mostly attributed to coverage of the iron surface with a precipitate layer composed of iron oxide and a chelate of Ql with Fe3+ and with a layer of Fe3+-SOMP complex precipitated at defects preferentially.

KW - A. low alloy steel

KW - B. EPMA

KW - B. IR spectroscopy

KW - B. polarization

KW - B. XPS

KW - C. neutral inhibition

UR - http://www.scopus.com/inward/record.url?scp=0030207761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030207761&partnerID=8YFLogxK

U2 - 10.1016/0010-938X(95)00172-G

DO - 10.1016/0010-938X(95)00172-G

M3 - Article

AN - SCOPUS:0030207761

VL - 38

SP - 1223

EP - 1234

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

IS - 8

ER -