在盐酸溶液中钼酸钠对软钢的缓蚀作用及其与乙叉二磷酸钠的协合缓蚀效应(英文)

Sodium Molybdate as Corrosion lnhibitor and Its Inhibition Synergism with Sodium Hydroxy ethylidene diphosphate for Mild Steel in Hydrochloric Acid Solution

考察了钼酸在盐酸溶液中对软钢的缓蚀作用，求出了ΔＨ°，ΔＧ°，ΔＳ°３个反应状态函数及活化能，并用吸附理论解释了缓蚀原因．同时发现钼酸钠和乙叉二磷酸钠混合使用时。

Sodium molybdate has been examined as a corrosion inhibitor for mild steel in 1mol·L -1 HCl solution by weight loss method.Three state functions (△ H°,△S°,△G °) and activation energy of corrosion reaction in the presence and in the absence of the inhibitor (Na 2MoO 4) has been evaluated.A marked corrosion inhibition synergism of Na 2MoO 4 and Sodium Hydroxy ethylidene diphosphate(SHEDN) was found.The results of the experiments were discussed in the light of Langmuir adsorption theory.