The application of electrochemical impedance in the environmentally friendly scale and corrosion inhibitor polyepoxysuccinic acid

DOI

10.2991/peee-15.2015.11How to use a DOI?

Keywords

Polyepoxysuccinic acid, Scale and corrosion inhibition, Polarization curve, Electrochemical impedance spectroscopy

Abstract

Polyepoxysuccinic acid (PESA) is a new, non-phosphorous, biodegradable, environmentally friendly scale and corrosion inhibitor implemented in industrial water treatment. The corrosion and scale inhibition properties of PESA were investigated in the test water by using static beaker test, weight-loss method, polarization curves and electrochemical impedance spectroscopy (EIS). It is found that, PESA has better scale inhibition efficiency on CaCO3, BaSO4 as well as is a phosphate-free environment-friendly inhibitor with multi-scale properties. There is a limited corrosion inhibition effect on carbon steel provided by PESA used alone at low concentration, and with the increase of PESA concentration, corrosion inhibition is gradually strengthened. The pH value has significant effect on corrosion inhibition property of PESA. There is low corrosion inhibition efficiency in acidic condition, as well as better corrosion inhibition efficiency of PESA in alkaline condition. PESA is mainly as the function of anodic corrosion inhibitor. PESA should be a non-phosphorous, biodegradable, environmentally friendly scale and corrosion inhibitor implemented in industrial water treat-ment.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - H.Y. Tian
AU  - B.R. Zhang
AU  - F.T. Li
PY  - 2015/04
DA  - 2015/04
TI  - The application of electrochemical impedance in the environmentally friendly scale and corrosion inhibitor polyepoxysuccinic acid
BT  - Proceedings of the 2015 International Conference on Power Electronics and Energy Engineering
PB  - Atlantis Press
SP  - 41
EP  - 47
SN  - 2352-5401
UR  - https://doi.org/10.2991/peee-15.2015.11
DO  - 10.2991/peee-15.2015.11
ID  - Tian2015/04
ER  -