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题名: Low-temperature heat capacity and thermodynamic properties of 3,6-dichloro-2-methoxy-benzoic acid
作者: Di, YY;  Li, ZN;  Meng, SH;  Tan, ZC;  Qu, SS
关键词: 3,6-dichloro-2-methoxy-benzoic acid ;  low-temperature heat capacity ;  adiabatic calorimetry ;  purity determination
刊名: THERMOCHIMICA ACTA
发表日期: 2001-06-01
卷: 373, 期:1, 页:31-36
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: The low-temperature heat capacity of 3,6-dichloro-2-methoxy-benzoic acid was precisely determined with an automated adiabatic calorimeter over the temperature range from 78 to 402 K. The sample was observed to melt at 388.15 +/- 0.03 K, The molar enthalpy and entropy of melting as well as the chemical purity of the substance were determined to be 22244 +/- 35 J mol(-1), 57.31 +/- 0.09 J mol(-1) K-1 and 99.31 +/- 0.02 mol%, respectively. The extrapolated melting temperature for the absolutely pure compound obtained from fractional melting experiments was 388.52 +/- 0.08 K. (C) 2001 Elsevier Science B.V. All rights reserved.
关键词[WOS]: CALORIMETER
语种: 英语
WOS记录号: WOS:000169241200005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138926
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.Wuhan Univ, Coll Chem & Environm Sci, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Di, YY,Li, ZN,Meng, SH,et al. Low-temperature heat capacity and thermodynamic properties of 3,6-dichloro-2-methoxy-benzoic acid[J]. THERMOCHIMICA ACTA,2001,373(1):31-36.
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