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Low-tmperature Heat Capacities and Standard Molar Enthalpy of Formation of 4-Nitrobenzyl Alcohol
Meng Qingfen2; Tan Zhicheng1,4; Wang Xiaohuan2,3; Dong Yaping2; Li Wu2; Shi Quan1,4
2009-07-01
发表期刊CHINESE JOURNAL OF CHEMISTRY
卷号27期号:7页码:1225-1231
文章类型Article
摘要Low-temperature heat capacities of 4-nitrobenzyl alcohol (4-NBA) have been measured by a high precision automated adiabatic calorimeter over the temperature range from 78 to 396 K. The melting temperature, the molar enthalpy and entropy of the phase transition were determined to be (336.426 +/- 0.088) K, (20.97 +/- 0.13) kJ.mol(-1) and (57.24 +/- 0.36) J.K(-1).mol(-1), respectively. The thermodynamic functions [H(T)-H(298.15 K)] and [S(T)-S(298.15 K)] were calculated in the range from 80 to 400 K at the interval of 5 K. The constant-volume energy and standard molar enthalpy of combustion have been determined, Delta(c)U(C(7)H(7)NO(3), s) = - (3549.11 +/- 1.47) kJ.mol(-1) and Delta(c)H(m)(o)(C(7)H(7)NO(3), s) = - (3548.49 +/- 1.47) kJ.mol(-1), by means of a precision oxygen-bomb combustion calorimeter at T=298.15 K. The standard molar enthalpy of formation has been derived, Delta(f)H(m)(o)(C(7)H(7)NO(3), s) = - (206.49 +/- 2.52) kJ.mol(-1), from the standard molar enthalpy of combustion in combination with other auxiliary thermodynamic quantities through a Hess thermochemical cycle.
关键词4-nitrobenzyl Alcohol Low-temperature Heat Capacity Thermodynamic Function Standard Molar Enthalpy Of Formation
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]THERMODYNAMIC PROPERTIES
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000268625200003
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5915
专题青海盐湖研究所知识仓储
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Xining 810008, Qinghai, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Liaoning, Peoples R China
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Meng Qingfen,Tan Zhicheng,Wang Xiaohuan,et al. Low-tmperature Heat Capacities and Standard Molar Enthalpy of Formation of 4-Nitrobenzyl Alcohol[J]. CHINESE JOURNAL OF CHEMISTRY,2009,27(7):1225-1231.
APA Meng Qingfen,Tan Zhicheng,Wang Xiaohuan,Dong Yaping,Li Wu,&Shi Quan.(2009).Low-tmperature Heat Capacities and Standard Molar Enthalpy of Formation of 4-Nitrobenzyl Alcohol.CHINESE JOURNAL OF CHEMISTRY,27(7),1225-1231.
MLA Meng Qingfen,et al."Low-tmperature Heat Capacities and Standard Molar Enthalpy of Formation of 4-Nitrobenzyl Alcohol".CHINESE JOURNAL OF CHEMISTRY 27.7(2009):1225-1231.
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