AMPEROMETRIC DETERMINATION OF RHENIUM IN DIFFERENT OBJECTS BY SOME ORGANIC BASIC DYES. CALCULATION OF SOLUBILITY PRODUCTS FOR OBTAINING INSOLUBLE COMPOUNDS

Authors

  • S. V. Vartanyan Chair of Analytical Chemistry, YSU, Armenia
  • Sh. A. Gyulnazaryan Chair of Analytical Chemistry, YSU, Armenia
  • N. M. Davtyan Chair of Analytical Chemistry, YSU, Armenia
  • H. G. Khachatryan Chair of Analytical Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2004.38.3.069

Keywords:

rhenium determination, amperometric titration method, phosphoric acid medium, organic basic dyes

Abstract

Possibility of rhenium determination in different rhenium-containing objects by amperometric titration method using some organic basic dyes as analytical reagents (Rhodamine G, Rhodamine 6G, Safranine T) has been shown. Titrations have been carried out in 0.8–1.0 M phosphoric acid medium on the platinum indicating microelectrode at +l.4 V (Rhodamine G, Rhodamine 6G) and 0.0 V (Safranine T) potentials. Solubility products values for compounds forming during interaction between perrhenate-ions and cations of the mentioned organic basic dyes (as well as Crystal Violet and Methyl Violet) have been calculated by means of two independent methods (photometric and gravimetric).

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Published

2004-10-19

How to Cite

Vartanyan, S. V., Sh. A. Gyulnazaryan, N. M. Davtyan, and H. G. Khachatryan. 2004. “AMPEROMETRIC DETERMINATION OF RHENIUM IN DIFFERENT OBJECTS BY SOME ORGANIC BASIC DYES. CALCULATION OF SOLUBILITY PRODUCTS FOR OBTAINING INSOLUBLE COMPOUNDS”. Proceedings of the YSU B: Chemical and Biological Sciences 38 (3 (205):69-74. https://doi.org/10.46991/PYSU:B/2004.38.3.069.

Issue

Vol. 38 No. 3 (205) (2004)

Section

Chemistry

License

Copyright (c) 2004 Proceedings of the YSU

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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