2023 Fall Meeting

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Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[1D05-07] Solubility

Wed. Sep 6, 2023 11:05 AM - 11:55 AM Room D (IB Bildg.1F Large Lecture Room)

Chair:Yuta Fukatsu(JAEA)

11:20 AM - 11:35 AM

[1D06] Discussion of solid phase surface in dissolution reaction of ZrO2

*TAKUTO HANAFUSA1, TAKAYUKI SASAKI1, TAISHI KOBAYASHI1 (1. Department of Nuclear Engineering, Graduate School of Engineering, Kyoto University)

Keywords:Zirconium Dioxide, Solid Surface, Solubility Product, Carbonate

In some cases, the metal concentration dissolved from crystalline metal dioxide MO2 in the neutral and alkaline pH exceeds the solubility estimated from thermodynamic calculations. We discussed this behavior based on the solubility study focusing on the surface condition of ZrO2(cr).

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