Heat capacity and thermochemical study of trifluoroacetamide (C2H2F3NO)
文献类型：期刊论文
| 作者 | Di, YY; Tan, ZC; Wu, XM; Meng, SH; Qu, SS |
| 刊名 | thermochimica acta
 |
| 出版日期 | 2000-08-07 |
| 卷号 | 356期号:1-2页码:143-151 |
| 关键词 | trifluoroacetamide heat capacity adiabatic calorimetry phase transition purity determination TG DSC |
| 英文摘要 | the low-temperature heat capacities of trifluoroacetamide were precisely determined with a small sample precision automated adiabatic calorimeter over the temperature range from 78 to 404 k. a solid-to-solid phase transition, a fusion and a phase transition from a liquid crystalline phase to fully liquid phase have been observed at the temperatures of 336.911+/-0.102, 347.622+/-0.094 and 388.896+/-0.160 k, respectively. the molar enthalpies of these phase transitions as well as the chemical purity of the substance were determined to be 5.576+/-0.004, 11.496+/-0.007, 1.340+/-0.005 kj mol(-1) and 99.30 mol%, respectively, on the basis of the heat capacity measurements. the molar entropies of the three phase transitions were calculated to be 16.550+/-0.012, 33.071+/-0.029 and 3.447+/-0.027 j mol(-1) k-1, respectively. further researches of the thermochemical properties for this compound have been carried out by means of tg and dsc techniques. (c) 2000 elsevier science b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical ; chemistry, physical |
| 研究领域[WOS] | chemistry |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000087942800018 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/85127]  |
| 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.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China 2.Wuhan Univ, Coll Chem & Environm Sci, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Di, YY,Tan, ZC,Wu, XM,et al. Heat capacity and thermochemical study of trifluoroacetamide (C2H2F3NO)[J]. thermochimica acta,2000,356(1-2):143-151. |
| APA | Di, YY,Tan, ZC,Wu, XM,Meng, SH,&Qu, SS.(2000).Heat capacity and thermochemical study of trifluoroacetamide (C2H2F3NO).thermochimica acta,356(1-2),143-151. |
| MLA | Di, YY,et al."Heat capacity and thermochemical study of trifluoroacetamide (C2H2F3NO)".thermochimica acta 356.1-2(2000):143-151. |
入库方式： OAI收割
来源：大连化学物理研究所
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