Abstract
The extraction of thorium from chloride medium with 2-ethyl hexyl phosphonicacid mono-2-ethyl hexyl ester, commercially known as PC-88A, in dodecane hasbeen investigated as a function of metal ion and hydrogen ion concentrationsin the aqueous phase and extractant concentration in the organic phase. Slopeanalysis and non linear least square regression of the data to the mathematicalexpression correlating percent extraction and equilibrium pH, suggested theformation of monomeric neutral complex of the type ThCl2 (HA2 )2 (H2A2 ) in the PC-88A phase uptoan aqueous acidity of 4N2 (H2A2 ) in thePC-88A phase upto an aqueous acidity of 4N.
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Mathur, J.N. Extraction of thorium with 2-ethyl hexyl phosphonic acid mono-2- ethyl hexyl ester (PC-88A). Journal of Radioanalytical and Nuclear Chemistry 250, 123–128 (2001). https://doi.org/10.1023/A:1013232717882
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DOI: https://doi.org/10.1023/A:1013232717882