Investigation of Effects of Some Schiff Bases on Behaviour of Mild Steel in Acidic Medium
Küçük Resim Yok
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ASIAN JOURNAL OF CHEMISTRY
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study investigated the effects on the behaviour of mild steel in 0.1 M HCl and 0.1M H2SO4 solution of the [4-(3-methoxy-salicylideneamino)-5-hydroxynaphthalene-2,7-,disulfonic acid diisodium salt (L-1) and 4-(3-methoxysalicyaldimino)-5-hydroxy-6-(2-nitrophenylazo)-2,7-naphthalene disulfonic acid disodium salt (L-2) in different concentrations with current-potential and electrochemical impedance spectroscopy (EIS) techniques. Polarization curves revealed that Schiff bases are mixed type inhibitors. Adsorption of Schiff bases on mild steel surface is spontaneous and,obeys Langmuir's isotherm. As a result, the inhibition efficiency of L-2 is higher than L-1 for the studied medium. Moreover, inhibition efficiency increases with increase in the concentration of the inhibitor.
Açıklama
Anahtar Kelimeler
Schiff base, Inhibitor, Impedance spectroscopy, Acid corrosion, Mild steel
Kaynak
ASIAN JOURNAL OF CHEMISTRY
WoS Q Değeri
N/A
Scopus Q Değeri
Q4
Cilt
26
Sayı
7
