Improvements in the assessment of the thermodynamic properties of condensed and gaseous phases of the CsOH compound

Roki, Fatima-Zhara; Ohnet, Marie-Noëlle; Fillet, S.; Chatillon, C.; Nuta, Ioana

doi:10.1016/j.jct.2014.08.021

Cited by 3 publications

(1 citation statement)

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“…Therefore, source term studies of Cs have mostly dedicated to the behaviors of the two compounds [3][4][5][6][7][8]. The well-known Phebus experiments demonstrated that Cs would firstly react with I or Mo to form CsI and Cs 2 MoO 4 , respectively [9].…”

Section: Introductionmentioning

confidence: 99%

Fission product behavior in high-temperature water: CsI vs MoO₄

Kanjana¹,

Silva²,

Channuie³

2017

J. Phys.: Conf. Ser.

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Abstract. Fission product behaviors of Cs, a major element released in a severe nuclear accident, still remain unclear. The question frequently addressed is whether Cs released will be in the form of Cs 2 MoO 4 or CsOH. This is a challenging issue since it has been demonstrated that the reaction between Cs 2 MoO 4 and water leading to CsOH production is thermodynamically favored. The present research aims at investigation of CsOH generation through this chemical channel. A high-temperature setup with a flow system based on the cooling system of a water-cooled nuclear reactor has been assembled. The reaction between aqueous solutions of CsI and Na 2 MoO 4 in a high-corrosion-resistant hot cell (Hastelloy) has been studied up to 80 o C in deoxygenated system. The products have been characterized using FTIR and XRD. The results have shown that there is no reaction between CsI and Na 2 MoO 4 under the experimental conditions.

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