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ABSTRACT
Corrosion of metals has become a critical environmental challenge which has gained more attention over the years especially in oil and gas industries. Numerous failures and eventual losses in the chemical industry have been traced to corrosion processes. Potassium chromate (K2CrO4) and Citrus sinensis (orange fruit) peels extract were used as corrosion inhibitors for mild steel in 1M HCl medium. Experiments were carried out in the presence and absence of inhibitors. Different concentrations of potassium chromate (6g, 8g and 10g) and orange peels extract (100ml, 150 and 200ml) was investigated in this study by using the weight loss method.
The experimental results revealed that the mild steel coupon without an inhibitor lost weight rapidly. Meanwhile, the mild steel coupons with inhibitors lost a considerable amount of weight, but slowly. This suggests that using corrosion inhibitor as a way of protecting metals can be effective.
From the results, we obtain that orange peels extract has a better inhibition performance than potassium chromate.
