Synthesis, characterization, and thermodynamic study of ammonium benzoate C7H5O2NH4(s)
文献类型：期刊论文
| 作者 | Yang, Wei-Wei1; Di, You-Ying1; Kong, Yu-Xia1; Guo, Xiao-Yang1; Tan, Zhi-Cheng2 |
| 刊名 | thermochimica acta
 |
| 出版日期 | 2010-04-20 |
| 卷号 | 502期号:1-2页码:14-19 |
| 关键词 | C7H5O2NH4(s) Adiabatic calorimeter Low-temperature heat capacity Isoperibol solution-reaction calorimeter Standard molar enthalpy of formation |
| 英文摘要 | benzoic acid and concentrated ammonia were chosen as reactants and a novel compound (ammonium benzoate) was synthesized using the method of liquid phase reaction. ftir, elemental analysis and x-ray powder diffraction technique were applied to characterize the structure and composition of the compound. low-temperature heat capacities of the solid compound were measured by a precision automated adiabatic calorimeter over the temperature range from 80 to 399k. a polynomial equation of the heat capacities was fitted by the least-squares method. in accordance with hess' law, a thermochemical cycle was designed, the enthalpy change of the reaction of benzoic acid with ammonium acetate was determined as delta h-r(m)degrees = (15.59 +/- 0.50) kj mol(-1), and the standard molar enthalpy of formation of the compound was calculated as delta h-f(m)degrees [c7h5o2nh4,s] = -(472.65 +/- 0.62) kj mol(-1) by an isoperibol solution-reaction calorimeter. (c) 2010 elsevier 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 |
| 关键词[WOS] | acids ; heat |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277492800003 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141980]  |
| 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 | Yang, Wei-Wei,Di, You-Ying,Kong, Yu-Xia,et al. Synthesis, characterization, and thermodynamic study of ammonium benzoate C7H5O2NH4(s)[J]. thermochimica acta,2010,502(1-2):14-19. |
| APA | Yang, Wei-Wei,Di, You-Ying,Kong, Yu-Xia,Guo, Xiao-Yang,&Tan, Zhi-Cheng.(2010).Synthesis, characterization, and thermodynamic study of ammonium benzoate C7H5O2NH4(s).thermochimica acta,502(1-2),14-19. |
| MLA | Yang, Wei-Wei,et al."Synthesis, characterization, and thermodynamic study of ammonium benzoate C7H5O2NH4(s)".thermochimica acta 502.1-2(2010):14-19. |
入库方式： OAI收割
来源：大连化学物理研究所
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