Spectroscopic determination of hypochlorous acid,in chloride brine solutions,featuring 5 MeV proton beam line experiments |
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| Affiliation: | 1. Earth and Environmental Sciences Division, Los Alamos National Laboratory, Carlsbad, NM 88220, USA;2. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;3. Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;1. Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India;2. Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India;1. Department of Chemical Engineering, Universitat Politècnica Catalunya-Barcelona Tech, Diagonal 647, E-08028 Barcelona, Spain;2. Fundació CTM Centre Tecnològic, Plaça de la Ciència 2, E-08243 Manresa, Spain;3. Institut de Tècniques Energètiques (INTE), Universitat Politècnica Catalunya-Barcelona Tech, Diagonal 647, E-08028 Barcelona, Spain;4. Centre for Research in NanoEngineering (CRNE), Universitat Politècnica Catalunya-Barcelona Tech, Diagonal 647, E-08028 Barcelona, Spain;1. Fouman Faculty of Technology, University of Tehran, Iran;2. National Iranian south Oil Company, Ahvaz, Iran;3. Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran |
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| Abstract: | The irradiation effects of 4.9 MeV protons on salt repository related brines are investigated spectrophotometrically. The induced formation of hypochlorous acid is determined up to doses of 11 kGy in 3.7 M MgCl2·6H2O and in a multicomponent brine of high concentration: Brine G. The build-up of hypochlorous acid to a steady-state concentration is found to be independent on the chloride concentration. The ultimate objective of this experiment is the estimation of the G value for HOCl in which meaningful predictions of long-term redox conditions in a nuclear repository strongly depend on. This paper describes our first steps towards the determination of HOCl. |
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