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submitted on 09.10.2019 and posted on 15.10.2019by Jisue Moon, Carter Abney, Dmitriy Dolzhnikov, James M. Kurley, Kevin
A. Beyer, Joshua Wright, Sheng Dai, Richard T. Mayes, Stephen S. Raiman
The local structure of dilute
CrCl3 in a molten MgCl2:KCl salt was investigated by in situ x-ray absorption spectroscopy
(XAS) at temperatures from room temperature to 800oC. This
constitutes the first experiment where dilute Cr speciation is explored in a
molten chloride salt, ostensibly due to the compounding challenges arising from
a low Cr concentration in a matrix of heavy absorbers at extreme temperatures. CrCl3 was confirmed to be the
stable species between 200 and 500oC, while mobility of metal ions
at higher temperature (>700oC) prevented confirmation of the