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题名: Heat capacity and standard molar enthalpy of formation of crystalline 2,6-dicarboxypyridine (C7H5NO4)
作者: Shi, Quan;  Tan, Zhi-Cheng;  Di, You-Ying;  Lv, Xue-Chuan;  Tong, Bo;  Zhang, Zhi-Heng;  Sun, Li-Xian;  Zhang, Tao
关键词: 2,6-dicarboxypyridine ;  heat capacity ;  thermodynamic function ;  adiabatic calorimetry ;  standard molar enthalpy of combustion ;  standard molar enthalpy of formation ;  TG-DTA ;  DSC
刊名: JOURNAL OF CHEMICAL THERMODYNAMICS
发表日期: 2006-12-01
DOI: 10.1016/j.jct.2006.03.007
卷: 38, 期:12, 页:1701-1705
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Thermodynamics ;  Chemistry, Physical
研究领域[WOS]: Thermodynamics ;  Chemistry
英文摘要: Low-temperature heat capacity C-p.m of 2,6-dicarboxypyridine (C7H5NO4; CAS 499-83-2) was precisely measured in the temperature range from (80 to 378) K with a high precision automated adiabatic calorimeter. No phase transition or thermal anomaly was observed in this range. The thermodynamic functions [H-T - H-298.15] and [S-T - S-298.15] were calculated in the range from (80 to 378) K. The standard molar enthalpy of combustion and the standard molar enthalpy of formation of the compound have been determined, Delta H-c(m)o (C7H5NO4, cr) = -(2741.41 +/- 0.49) kJ (.) mol(-1) and Delta H-f(m)o(C7H5NO4, cr) = -(727.74 +/- 1.50) kJ (.) mol(-1), by means of a precision oxygen-bomb combustion calorimeter at T = 298.15 K. The thermodynamic properties of the compound were further investigated through differential scanning calorimeter (DSC) and the thermogravimetric (TG) analysis. (c) 2006 Published by Elsevier Ltd.
关键词[WOS]: THERMODYNAMIC PROPERTIES
语种: 英语
WOS记录号: WOS:000243356000027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140054
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.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.LiaoCheng Univ, Coll Chem & Chem Engn, LiaoCheng 252059, Peoples R China

Recommended Citation:
Shi, Quan,Tan, Zhi-Cheng,Di, You-Ying,et al. Heat capacity and standard molar enthalpy of formation of crystalline 2,6-dicarboxypyridine (C7H5NO4)[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2006,38(12):1701-1705.
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