Development of a pH titration method for the simultaneous determination of uranium,nitrate and free-acid in the feed solution of the sol-gel process of nuclear fuel fabrication |
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Authors: | Kamat R V Sawant R M Mhatre H R Chaudhuri N K Vaidya V N |
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Institution: | (1) Fuel Chemistry Division, Bhabha Atomic Research Centre, Trombay, 400085 Mumbai, India |
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Abstract: | pH titration curves generated by slow addition of alkali to solutions containing varying concentrations of uranyl nitrate
and nitric acid were studied using an autotitrator linked to a personal computer. A procedure with multiple choice of equations
has been developed for the estimation of free acid, nitrate and uranium in pure uranyl nitrate solution by a single titration.
The technique provides a simple single-step method with required accuracy and precision for the simultaneous estimation of
the three quantities in the uranyl nitrate feed solution of the sol-gel process for making UO3 microspheres. The relative standard deviations in the determination of uranium and nitrate were ±0.82% and ±1.52%, respectively,
in 15 determinations. |
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