Transport Properties of Alkali Fluoride High Temperature Ionic Liquids and Application of Theories of Viscous Flow  

作　　者：POPESCU Anamaria 

机构地区：[1]Laboratory of Molten Salts, "Hie Murgulescu" Institute of Physical Chemistry, Romanian Academy [2]Technology Transfer Center(CTT-ICF), Bucharest 060021, Romania

出　　处：《Chemical Research in Chinese Universities》2015年第5期858-864,共7页高等学校化学研究（英文版）

摘　　要：The transport properties of several alkali fluoride high temperature ionic liquids（LiF, NaF, KF, RbF and CsF） were studied in a range of 980-1400 K and the temperature dependences of the viscosity and density were interpreted, in agreement with the classical equations characterizing the viscous flow（Arrhenius, Batchinski, Eyring and Frenkel）. The experimental results reveal the validity of these equations even at high temperatures, suggesting that no significant structural changes of alkali fluorides occurred in the studied temperature range. Our results clearly demonstrate that the mentioned thermo-physical properties can be used as powerful tools in the further investigations of the ionic interactions governing the alkali fluoride molten salts.The transport properties of several alkali fluoride high temperature ionic liquids（LiF, NaF, KF, RbF and CsF） were studied in a range of 980-1400 K and the temperature dependences of the viscosity and density were interpreted, in agreement with the classical equations characterizing the viscous flow（Arrhenius, Batchinski, Eyring and Frenkel）. The experimental results reveal the validity of these equations even at high temperatures, suggesting that no significant structural changes of alkali fluorides occurred in the studied temperature range. Our results clearly demonstrate that the mentioned thermo-physical properties can be used as powerful tools in the further investigations of the ionic interactions governing the alkali fluoride molten salts.

关 键 词：Ionic liquid Alkali fluoride VISCOSITY Temperature dependence Correlation FLUIDITY 

分 类 号：TQ222.24[化学工程—有机化工] TM262[一般工业技术—材料科学与工程]