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题名: Thermodynamic investigation of room temperature ionic liquid - Heat capacity and thermodynamic functions of BMIBF4
作者: Zhang, Z. H.;  Tan, Z. C.;  Li, Y. S.;  Sun, L. X.
通讯作者: 谭志诚
关键词: adiabatic calorimetry ;  BMIBF (4) ;  combustion calorimetry ;  glass translation ;  heat capacity ;  room temperature ionic liquid ;  standard enthalpy of formation ;  thermodynamic function
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2006-09-01
DOI: 10.1007/s10973-006-7640-0
卷: 85, 期:3, 页:551-557
收录类别: ISTP ;  SCI
文章类型: Article
部门归属: 15
项目归属: 1504
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The molar heat capacities of the room temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ( BMIBF4) were measured by an adiabatic calorimeter in temperature range from 80 to 390 K. The dependence of the molar heat capacity on temperature is given as a function of the reduced temperature X by polynomial equations, C-P,C-m ( J K-1 mol(-1))= 195.55+ 47.230 X - 3.1533 X-2+ 4.0733 X-3+ 3.9126 X-4 [ X=( T - 125.5)/45.5] for the solid phase ( 80 similar to 171 K), and C-P,C-m ( J K-1 mol(-1))= 378.62+ 43.929 X+ 16.456 X-2 - 4.6684 X-3 - 5.5876 X-4 [ X=( T - 285.5)/ 104.5] for the liquid phase ( 181 similar to 390 K), respectively. According to the polynomial equations and thermodynamic relationship, the values of thermodynamic function of the BMIBF4 relative to 298.15 K were calculated in temperature range from 80 to 390 K with an interval of 5 K. The glass translation of BMIBF4 was observed at 176.24 K. Using oxygen-bomb combustion calorimeter, the molar enthalpy of combustion of BMIBF4 was determined to be Delta H-c(m)o= - 5335 +/- 17 kJ mol(-1). The standard molar enthalpy of formation of BMIBF4 was evaluated to be Delta H-f(m)o= - 1221.8 +/- 4.0 kJ mol(-1) at T= 298.150 +/- 0.001 K.
关键词[WOS]: STANDARD MOLAR ENTHALPY ;  MOLTEN-SALTS ;  1-METHYL-3-BUTYLIMIDAZOLIUM CHLORIDE ;  THERMAL-ANALYSIS ;  SOLVENTS ;  COMPLEXES ;  ACID ;  WATER
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000240554500005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/97861
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Dalian Jiaotong Univ, Coll Environm Sci & Engn, Dalian 116028, Peoples R China

Recommended Citation:
Zhang, Z. H.,Tan, Z. C.,Li, Y. S.,et al. Thermodynamic investigation of room temperature ionic liquid - Heat capacity and thermodynamic functions of BMIBF4[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2006,85(3):551-557.
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