Corrosion Inhibition of Copper Using African Black Velvet Tamarind (Dialium indium) Extract in Sulphuric Acid Environment
Journal of Scientific Research and Reports · pp. 2450–2458 · Published 30 Jul 2014
10.9734/JSRR/2014/9434Abstract
Inhibition of corrosion of copper in aerated 0.5M sulphuric acid solutions containing various concentrations of Dialium indium extract was studied at a temperature range of 30 - 50ºC using weight loss and gasometric techniques. Results showed that Velvet Tamarind concentration range of 0.05 - 0.25g/500ml exhibited a good corrosion inhibition of 71.76%. Generally, it was observed that the rate of inhibition increased with temperature of the corrosive media and concentration of the inhibitor. This shows that Velvet Tamarind is a good, efficient and eco-friendly corrosion inhibitor for copper in 0.5M H2SO4 solution at room temperature and better at higher temperature.
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