Journal of Shanghai University(Natural Science Edition) ›› 2015, Vol. 21 ›› Issue (03): 384-392.doi: 10.3969/j.issn.1007-2861.2014.03.005

• Metallurgical Materials • Previous Articles    

Effect of temperature on physic-chemical properties of deep eutectic solvent based on choline chloride and  polyols

  

  • Received:2014-03-21 Online:2015-06-22 Published:2015-06-22

Abstract: Four kinds of deep eutectic solvents (DESs) based on choline chloride and polyols  were prepared. Density, viscosity and conductivity of the four DESs were measured as  functions of temperature in the range of 303~343 K. The results show that the densities of the four DESs sare linearly dependent on temperature. Viscosities decrease with  increasing temperature, and conductivities increase rapidly with increasing temperature,both obeying the Arrhenius exponential law. The activation energy of viscosity and conductivity  were calculated with the Arrhenius formula. The electrochemical windows of the  four DESs were also tested by using cyclic voltammetry at 333 K.

Key words: conductivity, deep eutectic solvent, density, electrochemical window, viscosity

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