THE INFLUENCE OF WATER CONCENTRATION ON THE CORROSION OF LOW ALLOY STEELS IN THE SYSTEM METHANOL – ETHYLENE GLYCOL – ACETIC ACID

Authors

  • D. Sutiman
  • M. Vizitiu

DOI:

https://doi.org/10.1515/hjic-2002-06

Abstract

The behaviour of three types of steel with a variable carbon content (from 0.2 to 0.4%) is studied in medium of methanol - 10% ethylene glycol - 5% acetic acid with water concentration between 1% to 5%. The weight losses are measured; also the polarisation anodic curves are plotted, and the corrosion parameters are established. IR spectroscopy, X-ray diffraction and chemical analysis are the methods used for analysing the corrosion compounds. With the obtained data, a corrosion mechanism is assigned. An optimum ratio between water and acid is established in order to obtain the passive oxyhydroxylic layer.

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Published

2002-10-12

How to Cite

Sutiman, D., & Vizitiu, M. (2002). THE INFLUENCE OF WATER CONCENTRATION ON THE CORROSION OF LOW ALLOY STEELS IN THE SYSTEM METHANOL – ETHYLENE GLYCOL – ACETIC ACID. Hungarian Journal of Industry and Chemistry, 30(1), 33–36. https://doi.org/10.1515/hjic-2002-06