Low-temperature heat capacities and thermodynamic properties of 1-methyl-3,5-diphenyl-pyrazole
Di, YY; Sun, XH; Liu, YF; Tan, ZC; Meng, SH; Gao, SL; Qu, SS
KeywordAdiabatic Calorimetry 1-methyl-3 Thermodynamic Function 5-diphenyl-pyrazole Differential Scanning Calorimetry Purity Determination
Indexed BySCI
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
AbstractThe 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.
WOS IDWOS:000168878100008
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.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
GB/T 7714
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.
APA Di, YY.,Sun, XH.,Liu, YF.,Tan, ZC.,Meng, SH.,...&Qu, SS.(2001).Low-temperature heat capacities and thermodynamic properties of 1-methyl-3,5-diphenyl-pyrazole.ACTA CHIMICA SINICA,59(4),496-501.
MLA Di, YY,et al."Low-temperature heat capacities and thermodynamic properties of 1-methyl-3,5-diphenyl-pyrazole".ACTA CHIMICA SINICA 59.4(2001):496-501.
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