Study and optimize the corrosion inhibitor of sodium sulphate in water media at different conditions

The Journal of Environmental studies (JES) 
Vol.VI: 25-30 (6), 6 pages
doi:.
Author:Nagam ' Kariem
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Abstract

The objective of this research was to study and optimize the conditions of using sodium sulphate as a corrosion inhibitor in water media through estimating the corrosion rate with and without the inhibitor in re-circulated water pilot plant. In this work, three variable studies were the temperatures between 40 to 60 oC, inhibitor concentrations between 10 to 90 mg/l, and pH between 6.5 to 7.5. A mathematical model expressing the effects of variables on the corrosion was obtained by using SPSS program. The accuracy of mathematical model was very high and reached 97% comparing with the experimental results. The optimization by Lagrangianmultipliers was used to get the best condition to produce minimum corrosion for the specimens. The efficiency of inhibition of the inhibitor was 86%.

Keywords

corrosion, sodium sulphate, inhibitor, corrosion efficiency, Lagrangian.

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