Volume 2, Issue 1, February 2014, Page: 1-5
Corrosion Inhibition of 316 Stainless Steel in 20%(W/W) HCl Solution using Dithizone
Mohamed Nuri Rahuma, Chemistry Department, Faculty of Science, Benghazi University, P.O. Box 1308, Benghazi, Libya
Fadwa Mahamed Al-Sonosy, Chemistry Department, Faculty of Science, Benghazi University, P.O. Box 1308, Benghazi, Libya
Atega Mohamed Al-Frjany, Chemistry Department, Faculty of Science, Benghazi University, P.O. Box 1308, Benghazi, Libya
Received: Jan. 5, 2014;       Published: Jan. 30, 2014
DOI: 10.11648/j.ajac.20140201.11      View  3239      Downloads  178
Abstract
The inhibiting effect of dithizone (Diphenylthiocarbazone) has been studied regarding the corrosion of 316 stainless steel in 20% w/w HCl at 35C. The effects of the inhibitor have been demonstrated using weight loss measurements. The increase of the inhibitor concentration leads to a decrease in the corrosion rate. This indicates a good adsorbability of dithizone (Diphenylthiocarbazone) on the metal surface. The value of ΔGad s has been calculated and dithizone has the potent to interact with 316 stainless steel through semi-physiosorption and/or semi-chemisorptions.
Keywords
Corrosion Inhibitor, 316 Stainless Steel, HCl, Dithizone
To cite this article
Mohamed Nuri Rahuma, Fadwa Mahamed Al-Sonosy, Atega Mohamed Al-Frjany, Corrosion Inhibition of 316 Stainless Steel in 20%(W/W) HCl Solution using Dithizone, American Journal of Applied Chemistry. Vol. 2, No. 1, 2014, pp. 1-5. doi: 10.11648/j.ajac.20140201.11
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