Abstract
Summary A study of Th(IV) in anhydrous dimethyl sulfoxide has been carried out using 0.1 M , 0.5 M and 1 M LiCl as supporting electrolyte. One well-defined wave has been observed, its height being linearly proportional to the Th(IV) concentration. The half-wave potentials have been measured, using a mercury pool as reference electrode. Waves have been obtained under different conditions of temperature and water concentration, in order to study the effect on the polarograms of these variations. The concentration range studied was 1·10 −3 –5·10 −3 M . The values for the diffusion current constant, and the peak potentials obtained in derivative polarography are presented.
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