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Investigation of molten ZnCl2 natural particle suspensions

Abstract

The common but unexpectedly neglected natural particle suspensions (NPSs) have significant effects on the characteristics of molten salts. In the present work, NPSs were generated via the corrosion of Cr or Fe cubes in molten ZnCl2 at 370, 420 or 470 °C in air and then investigated using in situ ultraviolet-visible spectroscopy, infrared spectroscopy and inductively coupled plasma optical emission spectrometry. The behaviors of Cr and Fe in these systems were quite different. In the case of Cr, particle (mainly contained Cr2O3) sizes grew over time and with temperature. The element Cr concentrations also increased over time, in addition, its values at 420 °C were a little larger than that at 370 °C but much lower than that at 470 °C. For Fe, particle (mainly contained Fe2O3) sizes and element Fe concentrations decreased with temperature, while first increased (the increase time reduced with temperature) then decreased slowly over time. These results ascribe to the chemical reactions of these metals with the molten salt and/or various impurities.

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Supplementary files

Article information


Submitted
16 Dec 2019
Accepted
03 Feb 2020
First published
03 Feb 2020

Anal. Methods, 2020, Accepted Manuscript
Article type
Paper

Investigation of molten ZnCl2 natural particle suspensions

X. Wang, Y. Liu, M. Shen, X. Fu, L. Han, G. Ma, H. Liu and L. Yan, Anal. Methods, 2020, Accepted Manuscript , DOI: 10.1039/C9AY02680K

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