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Sulphonates as rust inhibitors

O.N. Ananhd (Indian Institute of Petroleum, Dehradun‐248005, India)
V.P. Malik (Indian Institute of Petroleum, Dehradun‐248005, India)
K.D. Neemla (Indian Institute of Petroleum, Dehradun‐248005, India)
Vijayu Kumar (Indian Institute of Petroleum, Dehradun‐248005, India)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 1 July 1986

373

Abstract

The rust inhibiting characteristics of barium/calcium petroleum sulphonates, prepared from two indigenously available base stocks of different origin have been determined in concentration ranging from 0.5 to 3.0% W/W in mineral oil as per ASTM D‐1748 method. The products have been characterised as ‘outstanding’, ‘good’ and ‘satisfactory’ on the basis of their performance in the humidity cabinet. It has been observed that Ba/Ca petroleum sulphonates possessing outstanding rust inhibiting characteristics show low oil/water interfacial tension and high water solubilization characteristics as compared to other sulphonates. It has also been observed that the rust inhibiting characteristics are profoundly influenced by the structural parameter of the hydrocarbon portion of the petroleum sulphonates. The larger the alkyl side chain, the better is the rust inhibiting properties.

Citation

Ananhd, O.N., Malik, V.P., Neemla, K.D. and Kumar, V. (1986), "Sulphonates as rust inhibitors", Anti-Corrosion Methods and Materials, Vol. 33 No. 7, pp. 12-18. https://doi.org/10.1108/eb020461

Publisher

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MCB UP Ltd

Copyright © 1986, MCB UP Limited

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