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Heat capacity and thermodynamic properties of crystalline 2-chloro-N,N-dimethylnicotinamide
Sun, XH; Liu, YF; Tan, ZC; Ji, PJ; Wang, MH
关键词Heat Capacity 2-chloro-n Adiabatic Calorimetry N-dimethylnicotinamide
刊名CHINESE JOURNAL OF CHEMISTRY
2005-11-01
23期:11页:1490-1494
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Low-temperature heat capacities of 2-chloro-NN-dimethylnicotinamide were precisely measured with a high-precision automated adiabatic calorimeter over the temperature range from 82 K to 380 K. The compound was observed to melt at (342.15 +/- 0.04) K. The molar enthalpy Delta(fusion)H(m) and entropy of fusion, Delta(fusion)S(m) as well as the chemical purity of the compound were determined to be (21387 +/- 7) J circle mol(-1), (62.51 +/- 0.01) J circle mol(-1)circle K-1, (0.9946 +/- 0.0005) mass fraction, respectively. The extrapolated melting temperature for the pure compound obtained from fractional melting experiments was (342.25 +/- 0.024) K. The thermodynamic function data relative to the reference temperature 298.15 K were calculated based on the heat capacity measurements in the temperature range from 82 to 325 K. The thermal behavior of the compound was also investigated by different scanning calorimetry.
语种英语
WOS记录号WOS:000232999200005
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139632
专题中国科学院大连化学物理研究所
作者单位1.NW Univ Xian, Coll Chem Engn, Inst Chem Res, Xian 710069, Shaanxi, Peoples R China
2.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
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Sun, XH,Liu, YF,Tan, ZC,et al. Heat capacity and thermodynamic properties of crystalline 2-chloro-N,N-dimethylnicotinamide[J]. CHINESE JOURNAL OF CHEMISTRY,2005,23(11):1490-1494.
APA Sun, XH,Liu, YF,Tan, ZC,Ji, PJ,&Wang, MH.(2005).Heat capacity and thermodynamic properties of crystalline 2-chloro-N,N-dimethylnicotinamide.CHINESE JOURNAL OF CHEMISTRY,23(11),1490-1494.
MLA Sun, XH,et al."Heat capacity and thermodynamic properties of crystalline 2-chloro-N,N-dimethylnicotinamide".CHINESE JOURNAL OF CHEMISTRY 23.11(2005):1490-1494.
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