publication . Article . 2009

Inhibition effect of flavonoid extract of Euphorbia guyoniana on the corrosion of mild steel in H2SO4 medium

S Chihi; B Alabed; S Hameurlain; Noureddine Gherraf;
Open Access
  • Published: 01 Aug 2009 Journal: Journal of Fundamental and Applied Sciences, volume 1, page 31 (eissn: 1112-9867, Copyright policy)
  • Publisher: African Journals Online (AJOL)
Abstract
The influence of flavonoids extracts of three parts of Euphorbia Guyoniana towards the corrosion of type API 5L X52 steel in 15% H 2 SO 4 has been evaluated by weight loss method and polarization technique. The results showed that extracts are a good inhibitors for API 5L X52 steel in this medium. The corrosion inhibition efficiency increases on increasing plant extracts concentration. The inhibition is attributed to the adsorption of the surface of the metal. Potentiodynamic polarization results revealed that the studied inhibitors behave as a mixed type. Keywords:  API 5L X52 steel, corrosion inhibition, sulphuric acid, Euphorbia Guyoniana, flavonoids extract
doi: 10.4314/jfas.v1i2.4
Subjects
free text keywords: API 5L X52 steel, corrosion inhibition, sulphuric acid, Euphorbia Guyoniana, flavonoids extract, Science, Q, Euphorbia guyoniana, Adsorption, Inhibitory effect, Potentiodynamic polarization, Metal, visual_art.visual_art_medium, visual_art, Mixed type, Chemistry, Flavonoid, chemistry.chemical_classification, Metallurgy, Corrosion, Nuclear chemistry
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