Corrosion Inhibition of Reinforcing Carbon Steel Bars by Potassium Dichromate in Acidic Media

Document Type : Original Article

Authors

1 Chemistry Dep., Faculty of Science, Benha University, Benha, Egypt

2 North Cairo Flour Mills Co., El Salam City - Cairo - Egypt

3 Delta Steel Mill Co., Mostorod - Qalyubia - Egypt

Abstract

The effect of Potassium dichromate as inorganic inhibitor on the corrosion behavior of Reinforcing carbon steel Bars was
investigated in (1 M) HCl as acidic medium at 20° C. Varied Concentrations of potassium dichromate (0.0001), (0.0004),
(0.0008), (0.001) and (0.002) was investigated in study by using weight loss measurements at interval times (1-7) days and
potentiodynamic polarization curves. From the result we obtain that the K2Cr2O7 have a good inhibition effect in HCl medium.
Also, we obtain that the inhibition effect increases with increasing the inhibitor concentration. Inhibition efficiency was
calculated for the different concentrations of potassium dichromate.

Keywords