Synthesis, Characterization and Thermochemistry of Hydrated Sodium Phthalate
文献类型：期刊论文
| 作者 | Yang, Weiwei1; Di, Youying1; Kong, Yuxia1; Jin, Guangxin1; Tan, Zhicheng2 |
| 刊名 | acta chimica sinica
 |
| 出版日期 | 2010-02-28 |
| 卷号 | 68期号:4页码:294-300 |
| 关键词 | hydrated sodium phthalate adiabatic calorimetry low-temperature heat capacity isoperibol solution-reaction calorimetry standard molar enthalpy of formation |
| 英文摘要 | phthalic acid and sodium hydroxide were chosen as the reactants and a product of hydrated sodium phthalate was synthesized by the method of liquid phase synthesis. an x-ray powder diffraction technique, chemical and elemental analyses were applied to characterize the composition and structure of the compound. low-temperature heat capacities of the substance were measured by a precision automated adiabatic calorimeter over a temperature range from 78 to 366 k. a polynomial equation of the heat capacities as a function of the temperature was fitted by the least-squares method. based on the fitted polynomial, the smoothed heat capacities and thermodynamic functions of the compound relative to the standard reference temperature 298.15 k were calculated at an interval of 5 k. a reasonable thermochemical cycle was designed on the basis of the hess law, and the standard molar enthalpies of dissolution for the reactants and products of the designed solid phase reaction in the selected solvents were measured by an isoperibol solution-reaction calorimeter, respectively. in addition, the enthalpy change of the reaction was determined to be delta(r)h(m)= 29.073 +/- 1.05 kj.mol(-1) from the data of the above standard molar enthalpies of dissolution. eventually, the standard molar enthalpy of formation of hydrated sodium phthalate was derived to be -1493.637 +/- 1.11 kj.mol(-1) by the combination of the enthalpy change of the reaction with other auxiliary thermodynamic quantities. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | nicotinate |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275678300002 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141728]  |
| 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.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Weiwei,Di, Youying,Kong, Yuxia,et al. Synthesis, Characterization and Thermochemistry of Hydrated Sodium Phthalate[J]. acta chimica sinica,2010,68(4):294-300. |
| APA | Yang, Weiwei,Di, Youying,Kong, Yuxia,Jin, Guangxin,&Tan, Zhicheng.(2010).Synthesis, Characterization and Thermochemistry of Hydrated Sodium Phthalate.acta chimica sinica,68(4),294-300. |
| MLA | Yang, Weiwei,et al."Synthesis, Characterization and Thermochemistry of Hydrated Sodium Phthalate".acta chimica sinica 68.4(2010):294-300. |
入库方式： OAI收割
来源：大连化学物理研究所
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