Diffusivity and solubility measurement of oxygen in water acetic acid sodium acetate solutions on a rotating ring disc electrode

被引：13

作者：

Lozar, J ^{[1
]}

Bachelot, B ^{[1
]}

Falgayrac, G ^{[1
]}

Savall, A ^{[1
]}

机构：

[1] Univ Toulouse 3, Dept Electrochim, Lab Genie Chim, CNRS,UMR 5503, F-31062 Toulouse, France

来源：

ELECTROCHIMICA ACTA | 1998年 / 43卷 / 21-22期

关键词：

oxygen; acetic acid; diffusivity; viscosity; solubility;

D O I：

10.1016/S0013-4686(98)00004-8

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The measurement of oxygen transit time from ring to disc of a rotating ring disc electrode was used to determine the diffusivity of oxygen. The solubility of oxygen under atmospheric pressure was deduced from measurement of the limiting current of oxygen reduction in a saturated solution. The density and the kinematic viscosity of the solutions were also measured. The correlations obtained were used to calculate the following properties of four water-acetic acid-sodium acetate solutions: density, kinematic viscosity, absolute viscosity, diffusivity and solubility of oxygen in a temperature range of 25-80 degrees C. The solutions had a 5 and 10% water content in weight and a sodium acetate concentration of 0.5 and 1 mol [kg (acid + water)](-1). (C) 1998 Elsevier Science Ltd. All tights reserved.

引用

页码：3293 / 3296

页数：4

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