Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
| Heat capacity of Rb2SO4(aq) and Cs2SO4(aq) solutions and thermodynamic modelling of (Rb2SO4 + H2O) and (Cs2SO4 + H2O) systems | |
Fan, Yanfei; Li, Dongdong ; Gao, Dandan; Zeng, Dewen; Li, Wu
| |
| 第一作者 | Fan, Yanfei |
| 2020-01 | |
| 发表期刊 | JOURNAL OF CHEMICAL THERMODYNAMICS
 |
| ISSN | 0021-9614 |
| 卷号 | 142页码:106001 |
| 摘要 | Specific heat capacity of Rb2SO4(aq) and Cs2SO4(aq) solutions was determined using a Calvet-type calorimeter from 288.15 K to 338.15 K and from about 0.25 mol.kg(-1) to concentration near room temperature solubility limits. For both Rb2SO4(aq) and Cs2SO4(aq) solutions, the specific heat capacity decreases with the increase of molality at constant temperature. Combining the heat capacity data determined in this study and other thermodynamic properties (i.e. water activity, osmotic coefficient, mean ionic activity coefficient, enthalpy of dilution and solubility) reported in literature, thermodynamic and phase equilibria properties of the binary Rb2SO4 + H2O and Cs2SO4 + H2O systems were modelled using a comprehensive thermodynamic framework, in which a Pitzer-Simonson-Clegg model was applied to represent the non-ideality of aqueous phases. The models can represent all the properties over wide temperature and concentration ranges. This study forms a basis for solubility prediction in multi-component systems containing Rb and Cs sulfates. (C) 2019 Elsevier Ltd. |
| DOI | 10.1016/j.jct.2019.106001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/33871 |
| 专题 | 中国科学院青海盐湖研究所 盐湖资源与化学实验室 |
| 推荐引用方式 GB/T 7714 | Fan, Yanfei,Li, Dongdong,Gao, Dandan,et al. Heat capacity of Rb2SO4(aq) and Cs2SO4(aq) solutions and thermodynamic modelling of (Rb2SO4 + H2O) and (Cs2SO4 + H2O) systems[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2020,142:106001. |
| APA | Fan, Yanfei,Li, Dongdong,Gao, Dandan,Zeng, Dewen,&Li, Wu.(2020).Heat capacity of Rb2SO4(aq) and Cs2SO4(aq) solutions and thermodynamic modelling of (Rb2SO4 + H2O) and (Cs2SO4 + H2O) systems.JOURNAL OF CHEMICAL THERMODYNAMICS,142,106001. |
| MLA | Fan, Yanfei,et al."Heat capacity of Rb2SO4(aq) and Cs2SO4(aq) solutions and thermodynamic modelling of (Rb2SO4 + H2O) and (Cs2SO4 + H2O) systems".JOURNAL OF CHEMICAL THERMODYNAMICS 142(2020):106001. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Heat capacity of Rb2（530KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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。
修改评论