Enthalpies of Solution for VOSO4 center dot 2.76H(2)O(s) in Water and in Aqueous H2SO4
文献类型：期刊论文
| 作者 | Liu Jianguo; Qin Ye; Yan Chuanwei |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2010-04-14 |
| 卷号 | 68期号:7页码:722-726 |
| 关键词 | vanadium redox flow battery enthalpy of solution vanadyl sulfate sulfuric acid |
| ISSN号 | 0567-7351 |
| 通讯作者 | Liu Jianguo() |
| 英文摘要 | The molal enthalpies of solution of VOSO4 center dot 2.76H(2)O(s) with various molalities in water and in aqueous sulfuric acid (0.5 mol.kg(-1)) Delta H-s(m), were measured by a solution-reaction isoperibol calorimeter at 298.15 K. The value of -Delta H-s(m) in aqueous sulfuric acid was lower than that in water, which shows that energy state of VOSO4 in aqueous H2SO4 was higher than that in pure water. An improved Archer's method was put forward in terms of ionic association equilibrium of VOSO4 and second dissociation equilibrium of H2SO4. Using the improved method, the standard molal enthalpies of solution Delta H-s(m)circle minus = 29.18 kJ.mol(-1) in pure water and Delta H-s(m)circle minus = -25.79 kJ.mol(-1) in aqueous sulfuric acid were obtained, respectively. According to calculation, the molality of VO2+ was larger in VOSO4-H2SO4 mixed solution than that in water. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000277418700020 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/102209]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu Jianguo |
| 作者单位 | Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Jianguo,Qin Ye,Yan Chuanwei. Enthalpies of Solution for VOSO4 center dot 2.76H(2)O(s) in Water and in Aqueous H2SO4[J]. ACTA CHIMICA SINICA,2010,68(7):722-726. |
| APA | Liu Jianguo,Qin Ye,&Yan Chuanwei.(2010).Enthalpies of Solution for VOSO4 center dot 2.76H(2)O(s) in Water and in Aqueous H2SO4.ACTA CHIMICA SINICA,68(7),722-726. |
| MLA | Liu Jianguo,et al."Enthalpies of Solution for VOSO4 center dot 2.76H(2)O(s) in Water and in Aqueous H2SO4".ACTA CHIMICA SINICA 68.7(2010):722-726. |
入库方式： OAI收割
来源：金属研究所
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。