Radiolytic degradation of TBP-HNO3 system: Gas chromatographic determination of radiation chemical yields of n-Butanol and nitrobutane
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Radiolytic degradation of the TBP-HNO3 system has been studied for the radiation dose range of 19.8 to 262 kGy by the gas chromatographic method. n-Butanol and nitrobutane formed due to irradiation have been identified and estimated in pure TBP, TBP-3M HNO3 extract and TBP-5M HNO3 extract. The G-values (radiation chemical yields) of n-butanol are determined to be 0.28, 0.77 and 0.47 for a pure TBP, TBP-3M HNO3 extract and TBP-5M HNO3 extract, respectively. The G-values of nitrobutane (1-nitrobutane) are 0.55 and 1.09 for TBP-3M HNO3 extract and TBP-5M HNO3 extract. It is found than G(n-butanol) is less for TBP-5M HNO3 extract than for TBP-3M HNO3 extract, while G(nitrobutane) is grater for TBP-5M HNO3 extract than for TBP-3M HNO3 extract. This is explained on the basis of the formation of TBP.HNO3 species and the role played by nitric acid in the TBP phase.
KeywordsRadiation Physical Chemistry Inorganic Chemistry Radiation Dose Nitric Acid
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