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题名: Thermochemical and thermal analysis on N-(p-methylphenyl)-N '-(2-pyridyl)urea
作者: Song, YJ;  Tan, ZC;  Lu, SW;  Xue, Y
关键词: adiabatic calorimetry ;  N-(p-methylphenyl)-N '-(2-pyridyl)urea ;  thermal analysis ;  thermodynamic function
刊名: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
发表日期: 2004
卷: 77, 期:3, 页:873-882
收录类别: SCI
文章类型: Article
项目归属: 1504
产权排名: 2;2
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Low temperature heat capacities of N-(p-methylphenyl)-N'-(2-pyridyl)urea were determined by adiabatic calorimetry method in the temperature range from 80 to 370 K. It was found that there was not any heat anomaly in this temperature region. Based on the experimental data, some thermodynamic function results were obtained. Thermal stability and decomposition characteristics analysis of N-(p-methylphenyl)-N'-(2-pyridyl)urea were carried out by DSC and TG. The results indicated that N-(p-methylphenyl)-N'-(2-pyridyl)urea started to melt at ca. 426 K (153degreesC) and the melting peak located at 447.01 K (173.86degreesC). The melting enthalpy was 204.445 kJ mol(-1) (899.6 J g(-1)). The decomposition peak of N-(p-methylphenyl)-N'-(2-pyridyl)urea was found at 499.26 K (226.11degreesC) from DSC curve. This result was similar with that from TG and DTG experiment, in which the mass loss peak was determined as 500.4 K (227.2degreesC).
关键词[WOS]: CALORIMETER ;  AMINES ;  UREAS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000223917700014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81445
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.Beijing Inst Petrochem Technol, Sch Chem Engn & Mat, Beijing 102617, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Song, YJ,Tan, ZC,Lu, SW,et al. Thermochemical and thermal analysis on N-(p-methylphenyl)-N '-(2-pyridyl)urea[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2004,77(3):873-882.
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