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Citation: ZHANG Zi-Fu, LI Jing-Bin, TONG Jing, YANG Jia-Zhen. Estimation of Physico-chemical Properties of Ionic Liquid-[C₅mim][BF₄][J]. Chinese Journal of Applied Chemistry, ;2009, 26(4): 426-430. shu

Estimation of Physico-chemical Properties of Ionic Liquid-[C₅mim][BF₄]

ZHANG Zi-Fu ^a,b ,
LI Jing-Bin ^b ,
TONG Jing ^a,b ,
YANG Jia-Zhen ^a,,

1.
a Liaoning Key Laboratory of Green Synthesis and Preparative Chemistry of Advanced Materials, Liaoning University, Shenyang 110036;
2.
b College of Chemistry, Liaoning University, Shenyang 110036

Corresponding author: YANG Jia-Zhen,
Received Date: 18 April 2008
Available Online: 14 July 2008
Fund Project: 国家自然科学基金(20773056) (20773056)辽宁省教育厅科研基金(20060359)资助项目 (20060359)

According to standard addition method a series of samples of known water-containing ionic liquid(IL) [C₅mim][BF₄](1-methyl-3-pentylimidazolium tetrafluoroborate) were prepared and their densityexhibited a good linear relationship with the water content in a temperature range of278.15 to 338.15 K.Byextrapolation,the density values of the ionic liquid at various temperatures were determined.The empericalequation,lnρ=0.1201 1-5.79×10^-4(T-298.15),and the thermal expansion coefficient of the IL,α=5.79×10^-4K^-1,were obtained.On the basis of Glasser's theory,the standard molar entropy,the surfaceexcess energy,and crystal energy of the IL were estimated.In terms of the interstice model,the thermalexpansion coefficient of the IL,α(calculated),was calculated,which was in good agreement with the experi-mentalα.This result means that the interstice model is reasonable.
- ionic liquid,
- density,
- Glasser's theory,
- interstice model,
- physico-chemical property
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Estimation of Physico-chemical Properties of Ionic Liquid-[C₅mim][BF₄]