Enthalpy of Formation, Heat Capacity and Entropy of Melamine
文献类型：期刊论文
| 作者 | Liu Peng1; Xiong Wei1; Hu Shan-Zhou1; Li Xi1; Tan Zhi-Cheng2 |
| 刊名 | acta physico-chimica sinica
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 25期号:12页码:2417-2421 |
| 关键词 | Heat capacity Melamine Combustion heat Adiabatic calorimeter |
| 英文摘要 | the thermodynamic properties of melamine were studied by multiple thermochernical methods. a bomb combustion calorimeter was used to determine the combustion heat of melamine at 298.15 k. according to the results, we calculated the standard molar enthalpy of combustion and standard molar enthalpy of formation of melamine: delta h-c(m)theta=(-2455.17 +/- 4.65) kj mol(-1); delta h-f(m)theta=(-763.38 +/- 5.16) kj.mol(-1). the bond enthalpy of c approximate to n (between single bond and double bond) in melamine was then estimated to be 458.30 kj.mol(-1) according to the ralationship between bond enthalpy and combustion enthalpy. this value is larger than that of c-n but smaller than that of c=n. heat capacity measurements were carried out in a small sample adiabatic calorimeter from 80 to 385 k. we obtained delta h-f(m)theta at different temperatures between 80 and 385 k using the heat capacity data. through calculation with the values of heat capacity, the relationship between the standard molar enthalpy of formation and temperature is also presented as a functional equation. we also measured the thermol stability of melamine by the thermogravimetry-differential scanning calorimetry (tg-dsc) technique, which showed a thermal decomposition peak at 603.37 k for the dsc curve. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | acid ; toxicity ; nitrogen ; samples ; resin ; cats |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272817500003 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141285]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Wuhan Univ Technol, Sch Sci, Dept Chem, Wuhan 430070, Hubei, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab & China Ion Liquid Laoratory, Dalian 116023, Liaoning Prov, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Peng,Xiong Wei,Hu Shan-Zhou,et al. Enthalpy of Formation, Heat Capacity and Entropy of Melamine[J]. acta physico-chimica sinica,2009,25(12):2417-2421. |
| APA | Liu Peng,Xiong Wei,Hu Shan-Zhou,Li Xi,&Tan Zhi-Cheng.(2009).Enthalpy of Formation, Heat Capacity and Entropy of Melamine.acta physico-chimica sinica,25(12),2417-2421. |
| MLA | Liu Peng,et al."Enthalpy of Formation, Heat Capacity and Entropy of Melamine".acta physico-chimica sinica 25.12(2009):2417-2421. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。