The adsorption of the complex of niobium(V) with tartaric acid and 2-(5'-bromo-2'-pyridylazo)-5-diethylaminophenol at the hanging mercury drop electrode

Acta Chimica Sinica ›› 1989, Vol. 47 ›› Issue (7): 650-655. Previous Articles Next Articles

Original Articles

铌(V)-酒石酸-2-(5'-溴-2'-吡啶偶氮)-5-二乙氨基苯酚三元配便物的汞电极上的吸附

金文睿;杨清峰;买光昕;王淑仁

山东大学化学系

发布日期:1989-07-15

The adsorption of the complex of niobium(V) with tartaric acid and 2-(5'-bromo-2'-pyridylazo)-5-diethylaminophenol at the hanging mercury drop electrode

JIN WENRUI;YANG QINGFENG;MAI GUANGXIN;WANG SHUREN

Published:1989-07-15

Abstract

The adsorption was studied of a Nb(V) ternary complex with tartaric acid and 2-(5'-bromo-2'-pyridylazo)-5-(diethylamino)phenol (I) by a hanging Hg drop electrode in H2SO4. This complex can be adsorbed at potentials between +0.03 and -0.10 V vs. SCE. Reduction of the adsorbed complex proceeds reversibly. An equation is given for the concentration of the complex and its reduction product for adsorptive voltammetry, depending on the diffusion coefficient and the stability constant in the Nb complex, the diffusion layer thickness, and the concentration of free Nb and I in solution

Key words: PHENOL P, VOLTAMMETRY, DATA HANDLING, ADSORPTION, CONCENTRATION, TARTARIC ACID, TERNARY COMPLEX, REDUCTION REACTION, PYRIDINE AZO COMPOUNDS, ELECTROCHEMICAL REACTION

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JIN WENRUI;YANG QINGFENG;MAI GUANGXIN;WANG SHUREN. The adsorption of the complex of niobium(V) with tartaric acid and 2-(5'-bromo-2'-pyridylazo)-5-diethylaminophenol at the hanging mercury drop electrode[J]. Acta Chimica Sinica, 1989, 47(7): 650-655.

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铌(V)-酒石酸-2-(5'-溴-2'-吡啶偶氮)-5-二乙氨基苯酚三元配便物的汞电极上的吸附

The adsorption of the complex of niobium(V) with tartaric acid and 2-(5'-bromo-2'-pyridylazo)-5-diethylaminophenol at the hanging mercury drop electrode

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