THERMODYNAMIC STUDY AND ELECTROCHEMICAL INVESTIGATION OF CALCEIN AS CORROSION INHIBITOR FOR MILD STEEL IN HYDROCHLORIC ACID SOLUTION

Küçük Resim Yok

Tarih

2013

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

SOC CHILENA QUIMICA

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

The corrosion behaviour of mild steel in 1.0 M HCl solution containing different concentrations of Calcein at different temperatures was investigated using the impedance, potentiodynamic polarization and linear polarization techniques. Long term tests were accomplished by hydrogen gas evolution and impedance measurements. The results showed that inhibition efficiency has increased with the inhibitor concentration and temperature increment. The adsorption of the inhibitor on the mild steel surface obeyed the Langmuir isotherm. Activation energy values at concentrations of Calcein were lower than that of uninhibited system. The thermodynamic parameters of adsorption deduced reveal a strong interaction of Calcein on the mild steel surface.

Açıklama

Anahtar Kelimeler

Mild Steel, Polarization, EIS, Acid Corrosion, Calcein

Kaynak

JOURNAL OF THE CHILEAN CHEMICAL SOCIETY

WoS Q Değeri

Q4

Scopus Q Değeri

Cilt

58

Sayı

4

Künye