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ASM Handbook

Corrosion: Fundamentals, Testing, and Protection

Edited by
Stephen D. Cramer
Stephen D. Cramer
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Bernard S. Covino, Jr.
Bernard S. Covino, Jr.
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ASM International
Volume
13A
ISBN electronic:
978-1-62708-182-5
Publication date:
2003
Book Chapter

Potential Measurements with Reference Electrodes

By
E. Protopopoff
E. Protopopoff
Laboratoire de Physico-Chimie des Surfaces, CNRS
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P. Marcus
P. Marcus
Ecole Nationale Supérieure de Chimie de Paris, Université Pierre et Marie Curie
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Published:
2003
Page range:
13 - 16
Publication history
December 01, 2003

Abstract

Electrode potential measurement is an important aspect of corrosion studies and corrosion prevention. This article illustrates the three-electrode device used to determine the electrode potential of the electrode. A good reference electrode must reach its potential quickly, be reproducible, and remain stable with time. The article reviews stable and reproducible potential, low polarizability, and the liquid junction potential, which helps in reference electrode selection. It discusses operating conditions for reference electrodes with emphasis on very low current density and the current and resistance drop and its mitigation.

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E. Protopopoff, P. Marcus, 2003. "Potential Measurements with Reference Electrodes", Corrosion: Fundamentals, Testing, and Protection, Stephen D. Cramer, Bernard S. Covino, Jr.

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