摘要
以甜菜碱盐酸盐和尿素为原料合成了一种低共熔溶剂.测定了该低共熔溶剂的熔点、密度、电导率等物理性质.结果表明:90℃,摩尔百分数为60%～90%Urea/C5H12NO2Cl低共熔溶剂的密度范围在1.273～1.521 g/cm3.低共熔溶剂的电导率随温度的升高而增大,黏度随温度升高而减小,且均符合Arrhenious规律.尿素与甜菜碱盐酸盐的摩尔百分数为85%时低共熔溶剂的熔点最低,为27℃,在此浓度下,60℃时低共熔溶剂的电化学窗口为2V.
Deep eutectic solvents was synthesized with Betaine Hydrochloride and Urea and its physical properties such as melting point,density,conductivity were investigated.The result indicated that： 90 ℃,the density range of Urea/ C5H12NO2Cl deep eutectic solvent is 1.273 - 1.521 g/cm^3 with the 60% - 90% molar percentage of urea.Conductivity increased fast with the increasing of temperature,viscosity decreased rapidly with the increasing of temperature,and both of them could be described with Arrhenious equation.The eutectic point is 27℃ with the molar fraction of 85% Urea,and its electrochemistry window is 2V at 60℃.
出处
《昆明理工大学学报（理工版）》
北大核心
2010年第6期11-14,共4页
Journal of Kunming University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金(50864009)
高等学校博士学科点专项科研基金(20070674001)
关键词
黏度
电导率
低共熔溶剂
viscosity
conductivity
deep eutectic solvents
