Mild steel corrosion inhibition by acid extract of leaves of Hibiscus sabdariffa as a green corrosion inhibitor and sorption behavior

Green Chemistry Letters and Reviews

Z.V.P. Murthy¹ 

关键词: corrosion inhibitor;    Hibiscus sabdariffa;    mild steel;    acid bath;    adsorption isotherm;   

DOI  :  10.1080/17518253.2014.924592

学科分类：化学（综合）

来源: Taylor & Francis

【 摘 要 】

A new corrosion inhibitor, namely acid extract of leaves of Hibiscus sabdariffa, has been synthesized, and its inhibiting action on the corrosion of mild steel in acidic bath (1.2 N HCl and 1.2 N H2SO4) has been investigated by corrosion-monitoring techniques. The results of the present study show that this compound has decent inhibiting property for mild steel corrosion in 1.2 N H2SO4 than 1.2 N HCl. Four sorption isotherms are tested for the data, namely Langmuir, Frumkin, Florry–Huggins, and Langmuir–Freundlich isotherms; of these the Langmuir isotherm fits the data well having correlation coefficient over 0.99 in both the acid environments.

【 授权许可】

Unknown