Y. Matsuda, O. Nomura, H. Tamura
Sep 15, 1974
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Journal
Zairyo-to-kankyo
Abstract
Inhibiting effects of diethyl phosphite, diethyl a-hydroxyethyl phosphonate and diethyl apolyoxyethylene ethylphosphonates on corrosion of iron were studied in sulphuric and hydrochloric acids. Measurements of hydrogen gas evolution, polarization and capacitive impedance were applied. Among the compounds, diethyl a-polyoxyethylene ethylphosphonates were excellent inhibitors. They inhibited the catholic corrosion reaction in sulphuric acid, and the both anodic and cathodic reactions in hydrochloric acid.