Synthesis, Characterization and Thermochemistry of the Hydrated Barium Nicotinate
文献类型：期刊论文
| 作者 | Di You-Ying1; Kong Yu-Xia1; Zhang Shuang1; Yang Wei-Wei1; Wu En-Shen1; Shi Quan2; Tan Zhi-Cheng2 |
| 刊名 | acta physico-chimica sinica
 |
| 出版日期 | 2008-10-01 |
| 卷号 | 24期号:10页码:1884-1890 |
| 关键词 | Ba(Nic)(2)center dot 3H(2)O(s) Room temperature solid phase synthesis Adiabatic calorimetry Heat capacity at low temperature Isoperibol solution-reaction calorimeter Standard molar enthalpy of formation |
| 英文摘要 | a new compound. barium nicotinate trihydrate, wits synthesized by the method of room temperature solid phase synthesis and ball grinder. ftir, chemical and elemental analyses, and x-ray powder diffraction techniques were applied to characterize the structure and composition of the complex. low-temperature heat capacities of the solid coordination compound were measured by it precision automated adiabatic calorimeter over the temperature range from 78 to 400 k. a phase transition process occurred in the temperature range of 312-332 k in the heat capacity curve, and the peak temperature, molar enthalpy and entropy of the solid-to-solid phase transition of the complex were determined to be its follows: t-trs=(327.097+/-1.082) k, delta h-trs(m)=(16.793+/-0.084) kj center dot mol(-1) and delta s-trs(m) =(51.340+/- 0.164) j center dot k-1 center dot mol(-1). the experimental values of the molar heat capacities in the temperature regions of 7 8-311 k and 333-400 k were respectively fitted to two polynomial equations. the polynomial fitted values of the molar heat capacities and fundamental thermodynamic functions of the sample relative to the standard reference temperature of 298.15 k were calculated and tabulated at an interval of 5 k. in accordance with hess law, it thermochemical cycle was designed, the reaction enthalpy of the solid phase reaction was determined its delta h-t(m)0 =-(84.12+/-0.38) kj center dot mol(-1), and the standard molar enthalpy of formation of the complex was calculated as delta h-f(m)0 [ba(nic)(2) center dot 3h(2)o(s)]=-(2115.13+/-1.90) kj center dot mol(-1) by using an isoperibol solution-reaction calorimeter. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | standard molar enthalpy ; complex ; acid |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000260347300025 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141106]  |
| 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, Shandong, 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 | Di You-Ying,Kong Yu-Xia,Zhang Shuang,et al. Synthesis, Characterization and Thermochemistry of the Hydrated Barium Nicotinate[J]. acta physico-chimica sinica,2008,24(10):1884-1890. |
| APA | Di You-Ying.,Kong Yu-Xia.,Zhang Shuang.,Yang Wei-Wei.,Wu En-Shen.,...&Tan Zhi-Cheng.(2008).Synthesis, Characterization and Thermochemistry of the Hydrated Barium Nicotinate.acta physico-chimica sinica,24(10),1884-1890. |
| MLA | Di You-Ying,et al."Synthesis, Characterization and Thermochemistry of the Hydrated Barium Nicotinate".acta physico-chimica sinica 24.10(2008):1884-1890. |
入库方式： OAI收割
来源：大连化学物理研究所
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