An Improved Hittorf's Apparatus for Determining Ion Transference Number

Kan Jinqing , Xu Qin and Chen Ke
Department of Chemistry, School of Sciences, Yangzhou University, Yangzhou 225002, P. R. China
J. Chem. Educ., 2001, 78 (7), p 937
DOI: 10.1021/ed078p937
Publication Date (Web): July 1, 2001

Abstract

Two improvements were made on Hittorf's apparatus. The electrodes were placed above the connected tube to avoid producing gases that would disturb the interface. A simple galvanostat was used for the determination of ion transfer number, to eliminate the measurement errors caused by the fluctuating current. Better results were obtained using the improved apparatus, which is simple to operate.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Subject):

Electrochemistry
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  • Received: August 03, 2009

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