Extraction of 197mHg with TIBPS in HNO3 and HCl media

Kmak, Kelly N.; Valdez, Carlos A.; Anex, Deon S.; Despotopulos, John D.

doi:10.1007/s10967-022-08228-x

Title: Extraction of ¹⁹⁷mHg with TIBPS in HNO₃ and HCl media

Journal Article · 07 March 2022 · Journal of Radioanalytical and Nuclear Chemistry

DOI: https://doi.org/10.1007/s10967-022-08228-x · OSTI ID:1860741

^[1]; Valdez, Carlos A. ^[1]; Anex, Deon S. ^[1]; Despotopulos, John D. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Here, the extraction of no carrier added mercury by tri-isobutyl phosphine sulfide (TIBPS) was characterized in HCl and HNO₃ media. The extraction of ¹⁹⁷mHg as a function of acid concentration was similar in both acids over a large acid concentration (0.001 M to conc.) with high extraction (D ~ 1000) at low concentrations and decreasing extraction for higher concentrations (≥ 4 M). The kinetics of extraction were rapid (~ 5 min.) in both acids. Speciation experiments indicated that the extraction mechanism is 1:2 (¹⁹⁷mHg:TIBPS) in HCl and 1:1 in HNO₃.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1860741

Report Number(s):: LLNL-JRNL-828421; 1043807

Journal Information:: Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Journal Issue: 4 Vol. 331; ISSN 0236-5731

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
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Title: Extraction of 197mHg with TIBPS in HNO3 and HCl media

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Title: Extraction of ¹⁹⁷mHg with TIBPS in HNO₃ and HCl media