Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry and Computational Chemistry

Abstract

Using pectin extract as eco-friendly inhibitor for steel corrosion in 1M HCl media

Author(s): N. Saidi, H. Elmsellem, M. Ramdani, A. Chetouani, K. Azzaoui, F. Yousfi, A. Aouniti and B. Hammouti

Corrosion inhibition of mild steel in 1 M HCl was investigated in the absence and presence of different concentrations of pectin extracted from opuntia cladodes. Weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy techniques were employed. Impedance measurements showed that the double-layer capacitance decreased and charge-transfer resistance increased with increase in the inhibitor concentration and hence increasing in inhibition efficiency. Potentiodynamic polarization study showed that the inhibitor act as cathodic-type inhibitor. The inhibition efficiency was found to increase with inhibitor content to attain 96% in the presence of1g/l at 308K. Data obtained from EIS studies were analyzed to determinate the model inhibition process through appropriate equivalent circuit models. Inhibition efficiency E (%) obtained from the various methods was in good agreement. The associated activation energy has been determined. The adsorption of pectin on the steel surface was found obey to Langmuir’s adsorption isotherm


FIND ARTICLES
SCImago Journal & Country Rank
kız uzun zamandır masaj salonunda çalışıyor çok sulanan erkek oluyor ama porno izle bir türlü hiç birine vermiyor Ama sonunda genç paraya sıkışıyor ve bir porno resimleri sikiş için çok para teklif eden genç adama sonunda kabul ediyor ve evlerine giren amatör pornolar maskeli hırsız genç kadının odasındaki çekmecelerde para ararken kadının seksi iç sikiş çamaşırlarına denk geliyor Onları koklayarak yarağı taş gibi oluyor daha sonra genç porno fotoğrafları kadın odaya bir den bire girince hırsızı görüyor ve bağırmaya başlıyor Hırsız hızlıca porno hikayeleri kızın ağzını elleri ile kapatarak tam kızın kalçalarını kucağına alarak sevişiyor
ankara escort
mobile bitcoin casino
Casumo no deposit bonus bitcoin nedir?