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题名: Thermodynamic investigation of several natural polyols (IV): Heat capacities and thermodynamic properties of adonitol
作者: Tong, Bo3;  Yu, Ying4;  Tan, Zhi-Cheng1, 2;  Meng, Chang-Gong3;  Cui, Li-Jun3;  Xiao, Guang3;  Liu, Rui-Bin3
关键词: Adonitol ;  Phase transition ;  Adiabatic calorimetry ;  Oxygen-bomb combustion calorimetry ;  DSC ;  TGA
刊名: THERMOCHIMICA ACTA
发表日期: 2010-02-20
DOI: 10.1016/j.tca.2009.11.011
卷: 499, 期:1-2, 页:117-122
收录类别: SCI
文章类型: Article
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: Adonitol was investigated by adiabatic calorimetry (AC), differential scanning calorimetry (DSC), thermogravity analysis (TGA) and oxygen-bomb combustion calorimetry. The heat capacity was precisely measured in the temperature range from 78 to 400 K by means of a small sample automated adiabatic calorimeter. The melting temperature, the molar enthalpy and entropy of this transition were determined to be T=369.08 +/- 0.45 K. 36.42 +/- 0.18 kJ mol(-1) and 98.68 +/- 0.49 JK(-1) mol(-1) respectively from the experimental C(p)-T curve. The thermodynamic functions [H(T)(0) - H(298.15)(0)] and [S(T)(0) - S(298.15)(0)] were derived from the heat capacity data with an interval of 5 K. The Standard molar enthalpy of combustion and formation of the compound have been determined to be Delta(c)H(m)(0), (C(5)H(12)O(5)center dot cr)=(-2562.4+/-1.3)kJ mol(-1) and Delta(c)H(m)(0) (C(5)H(12)O(5).cr)=(-1120.1+/-1.5)kJ mol(-1) respectively by means of a precision oxygen-bomb combustion calorimeter at T=298.15 K. The thermostability of the compound was further studied by DSC and TGA measurements. (C) 2009 Published by Elsevier B.V.
关键词[WOS]: FREE POLY(VINYL CHLORIDE) ;  AMORPHOUS STATE ;  SMALL SAMPLES ;  METAL-FREE ;  SWEETENERS ;  ENTHALPIES ;  ACID ;  CALORIMETER ;  COMBUSTION ;  SYSTEMS
语种: 英语
WOS记录号: WOS:000275257200019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141937
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.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China
3.Dalian Univ Technol, Sch Chem Engn, Dept Chem, Dalian 116023, Peoples R China
4.PetroChina Dalian Petrochem Co, Dalian 116032, Peoples R China

Recommended Citation:
Tong, Bo,Yu, Ying,Tan, Zhi-Cheng,et al. Thermodynamic investigation of several natural polyols (IV): Heat capacities and thermodynamic properties of adonitol[J]. THERMOCHIMICA ACTA,2010,499(1-2):117-122.
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