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Comparative evaluation of radiolytic stability of aqueous soluble BTP and BTBP derivatives under static gamma irradiation

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Abstract

The radiolytic stability of aqueous solutions containing two different bis-1,2,4-triazines was studied under static gamma irradiation. Sulphophenyl derivatives of bis-1,2,4- triazinyl pyridine (SO3-Ph-BTP) and bis-1,2,4-triazinylbipyridine (SO3-Ph-BTBP) were dissolved in 0.1 M and 1 M HNO3 solutions and the impact of gamma irradiation was assessed by the measurement of distribution ratios of Am(III) and Eu(III) using irradiated samples. The results were compared for two different organic solvents containing N,N,N’,N’-tetraoctyldiglycolamide (TODGA) or N,N-didodecyl-N’,N’-dioctyldiglycolamide (D3DODGA). The separation efficiency of all the systems remained unchanged when the absorbed dose was 100 kGy, and gradually decreased at 200 kGy and 500 kGy. The radiolytic degradation was more apparent for SO3-Ph-BTBP in comparison to SO3-Ph-BTP at higher acidity. The degradation of sulphonate groups in the molecules was evidenced in ATR-FTIR spectral studies.

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Acknowledgements

The authors from Easwari Engineering College acknowledge the financial support received from Atomic Energy Regulatory Board (AERB), India (Ref. No. AERB/CSRP/PROJ.No.65/06/2017) and the Grant-in-Aid by FIST scheme from Department of Science and Technology (DST), New Delhi, India (sanction order no: SR/FIST/college-110/2017 dated on 16-01-2018). All authors thank Sri H. Krishnan, Radiological Safety Group, IGCAR for providing the gamma irradiation facility and Dr. N Sivaraman, Director, Materials Chemistry and Metal Fuel Cycle Group, IGCAR for his keen interest in the work.

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Authors and Affiliations

  1. Chemistry Department, Easwari Engineering College, Ramapuram, Chennai, 600089, India

    Jeesmon Jose, N. S. Karthikeyan, B. Venkatachalapathy & C. Ravichandran

  2. Materials Chemistry and Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603 102, India

    T. Prathibha, K. A. Venkatesan & B. Robert Selvan

  3. Safety Research Institute, Atomic Energy Regulatory Board, Kalpakkam, 603 102, India

    H. Seshadri

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  1. Jeesmon Jose
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  2. T. Prathibha
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  4. K. A. Venkatesan
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Correspondence to N. S. Karthikeyan or K. A. Venkatesan.

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Jose, J., Prathibha, T., Karthikeyan, N.S. et al. Comparative evaluation of radiolytic stability of aqueous soluble BTP and BTBP derivatives under static gamma irradiation. J Radioanal Nucl Chem 328, 1127–1136 (2021). https://doi.org/10.1007/s10967-021-07711-1

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  • DOI: https://doi.org/10.1007/s10967-021-07711-1

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