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Z. Naturforsch. 66a, 649 – 655
(2011)
doi:10.5560/ZNA.2011-0016
Viscosity of Molten Rare Earth Metal Trichlorides II. Cerium Subgroup
1 Institute of High Temperature Electrochemistry, 20 S. Kovalevskaya Str., 620219, Ekaterinburg, Russia
2 Aerospace Material Science laboratory, Department of Metallurgy Graduate School of Engineering Tohoku University, 6-6-02, Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Received September 2, 2010 / revised April 18, 2011
Reprint requests to: A. P.; E-mail:
a.potapov@ihte.uran.ru
The kinematic viscosity of molten LaCl3, CeCl3, PrCl3, NdCl3, and SmCl3 was measured directly by using a capillary viscometer made of quartz and a transparent electric furnace. Viscosity of molten PmCl3 and EuCl3 was estimated using common tendencies in the lanthanides row. The dynamic viscosity was computed by using the most reliable density data taken from literature. The viscosity of molten lanthanides trichlorides at the same temperature changes slightly within a cerium lanthanides subgroup. Molten EuCl3 perhaps has abnormally low viscosity.
Key words: Viscosity; Molten Salts; Rare Earths; Chlorides.