Journal of Research in Chemistry
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P-ISSN: 2709-9415, E-ISSN: 2709-9423

Journal of Research in Chemistry


2021, Vol. 2, Issue 1, Part A
Exploration study on third phase behaviour for the nitric acid-tri-butyl phosphate system using conductivity measuring technique


Author(s): Dr. Ravindra Singh Yadav

Abstract: Conductivity measurements of the organic phase have been done for the extraction of nitric acid by trin-butyl phosphate (TBP) in order to understand the third phase formation mechanism. Experiments were conducted at different nitric acid (2-14M) and TBP (20 to 90 vol %) concentrations. Experimental results indicated that conductivity variation of the organic phase can be correlated to the moisture as well as the species present in the organic phases. A higher value of conductivity was observed for third phase than the other two organic phases which is observed to be formed at high nitric acid concentration > 10M. The higher conductivity of third phase is attributed to the movement of nitric acid in the micro-emulsion globules due to the extraction of both nitric acid and moisture near third phase formation limit. A thermodynamic model has also been developed for the calculation of speciation of TBP-HNO3 complex.

Pages: 68-73 | Views: 15 | Downloads: 7

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How to cite this article:
Dr. Ravindra Singh Yadav. Exploration study on third phase behaviour for the nitric acid-tri-butyl phosphate system using conductivity measuring technique. J Res Chem 2021;2(1):68-73.
Journal of Research in Chemistry