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题名: Low-temperature heat capacities and thermodynamic properties of 1-methyl-3,5-diphenyl-pyrazole
作者: Di, YY;  Sun, XH;  Liu, YF;  Tan, ZC;  Meng, SH;  Gao, SL;  Qu, SS
关键词: 1-methyl-3,5-diphenyl-pyrazole ;  adiabatic calorimetry ;  thermodynamic function ;  differential scanning calorimetry ;  purity determination
刊名: ACTA CHIMICA SINICA
发表日期: 2001
卷: 59, 期:4, 页:496-501
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The heat capacities of 1 - methyl - 3,5 - diphenyl - pyrazole have been precisely determined with a small sample precision automated adiabatic calorimeter over the temperature range from 78 to 370 K. A phase transition from solid to liquid is observed at the peak temperature of (332.903 +/- 0.152) K. The molar enthalpy and entropy of the phase transition as well as chemical purity of the substance are determined to be (17463.48 +/- 21.81) J . mol(-1), (52.55 +/- 0.06) J .K-1. mol(-1) and 99.54%, respectively, on the basis of the heat capacity measurements. The further research of solid - liquid phase transition for this compound has been carried out by means of DSC technique.
关键词[WOS]: CALORIMETER
语种: 英语
WOS记录号: WOS:000168878100008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138840
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
3.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China

Recommended Citation:
Di, YY,Sun, XH,Liu, YF,et al. Low-temperature heat capacities and thermodynamic properties of 1-methyl-3,5-diphenyl-pyrazole[J]. ACTA CHIMICA SINICA,2001,59(4):496-501.
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