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Low-temperature heat capacities and standard molar enthalpy of formation of aspirin
Xu, F; Sun, LX; Tan, ZC; Liang, JG; Di, YY; Tian, QF; Zhang, T
关键词Adiabatic Calorimetry Aspirin Combustion Calorimetry Enthalpy Of Formation Heat Capacity
刊名JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
2004
76期:2页:481-489
收录类别SCI
文章类型Article
项目归属1504,1501
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Analytical ; Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]THERMODYNAMIC PROPERTIES ; ACID ; GRAPHITE
英文摘要Molar heat capacities (C-p,C-m) of aspirin were precisely measured with a small sample precision automated adiabatic calorimeter over the temperature range from 78 to 383 K. No phase transition was observed in this temperature region. The polynomial function of Cp, vs. T was established in the light of the low-temperature heat capacity measurements and least square fitting method. The corresponding function is as follows: for 78 Kless than or equal toTless than or equal to383 K, C-p,C-m/J mol(-1) K-1=19.086X(4)+15.951X(3)-5.2548X(2)+90.192X+176.65, [X=(T-230.50/152.5)]. The thermodynamic functions on the base of the reference temperature of 298.15 K, {DeltaH(T)-DeltaH(298.15)} and {S-T-S-298.15}, were derived.
语种英语
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WOS记录号WOS:000221460800012
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被引频次:16[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/321008/81463
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat Thermochem Lab, Dalian 116023, Peoples R China
2.Hunan Inst Drug Detect, Changsha 410001, Peoples R China
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Xu, F,Sun, LX,Tan, ZC,et al. Low-temperature heat capacities and standard molar enthalpy of formation of aspirin[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2004,76(2):481-489.
APA Xu, F.,Sun, LX.,Tan, ZC.,Liang, JG.,Di, YY.,...&Zhang, T.(2004).Low-temperature heat capacities and standard molar enthalpy of formation of aspirin.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,76(2),481-489.
MLA Xu, F,et al."Low-temperature heat capacities and standard molar enthalpy of formation of aspirin".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 76.2(2004):481-489.
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