USE OF MONOCRYSTALS OF CUPRUM IODIDE-PENTATIOSILICATE Cu7SiS5I AS MATERIAL OF MEMBRANE OF ION-SELECTIVE ELECTRODE FOR DETERMINATION OF CUPRUM IN ACID SOLUTIONS

摘要

The invention relates to means of physical-chemical analysis, in particular to methods for determination of activity of cooper ions in liquid media for control and adjustment of ion composition of acid cooper-containing solution. As material of membrane of ion-selective electrode for determination of cooper in acid solutions cooper-iodide-pentatiocylicate CuSiSI is used. The invention provides higher chemical stability of ion-selective electrode and increases repeatability of potentials due to increase of value of ion component of conductivity.