Knowledge Management System Of Qinghai Institute of Salt Lakes,CAS
The measurement of hydration heats for magnesium chloride with low waterby means of DSC | |
Chen, J; Ma, P; Chen, G; Chen, F | |
2001 | |
发表期刊 | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY |
ISSN | 1418-2874 |
卷号 | 65期号:3页码:777-786 |
摘要 | The heats of hydration reactions for MgCl2. 4H(2)O and MgCl2. 2H(2)O include two parts, reaction enthalpy and adsorption heat of aqueous vapor on the surfaces of magnesium chloride hydrates. The hydration heat for the reactions MgCl2. 4H(2)O+2H(2)O --> MgCl2. 6H(2)O and MgCl2. 2H(2)O+2H(2)O --> MgCl2. 4H(2)O, measured by DSC-111, is -30.36 and -133.94 kJ mol(-1), respectively. The adsorption heat of these hydration processes, measured by head-on chromatography method, is -13.06 and -16.11 kJ mol(-1), respectively. The molar enthalpy change for the above two reactions is -16.64 and -118.09 kJ mol(-1), respectively. The comparison between the experimental data and the theoretical values for these hydration processes indicates that the results obtained in this study are quite reliable. The heats of hydration reactions for MgCl2. 4H(2)O and MgCl2. 2H(2)O include two parts, reaction enthalpy and adsorption heat of aqueous vapor on the surfaces of magnesium chloride hydrates. The hydration heat for the reactions MgCl2. 4H(2)O+2H(2)O --> MgCl2. 6H(2)O and MgCl2. 2H(2)O+2H(2)O --> MgCl2. 4H(2)O, measured by DSC-111, is -30.36 and -133.94 kJ mol(-1), respectively. The adsorption heat of these hydration processes, measured by head-on chromatography method, is -13.06 and -16.11 kJ mol(-1), respectively. The molar enthalpy change for the above two reactions is -16.64 and -118.09 kJ mol(-1), respectively. The comparison between the experimental data and the theoretical values for these hydration processes indicates that the results obtained in this study are quite reliable. |
文献类型 | 期刊论文 |
条目标识符 | http://ir.isl.ac.cn/handle/363002/2337 |
专题 | 青海盐湖研究所知识仓储 中国科学院青海盐湖研究所 |
推荐引用方式 GB/T 7714 | Chen, J,Ma, P,Chen, G,et al. The measurement of hydration heats for magnesium chloride with low waterby means of DSC[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2001,65(3):777-786. |
APA | Chen, J,Ma, P,Chen, G,&Chen, F.(2001).The measurement of hydration heats for magnesium chloride with low waterby means of DSC.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,65(3),777-786. |
MLA | Chen, J,et al."The measurement of hydration heats for magnesium chloride with low waterby means of DSC".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 65.3(2001):777-786. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Chen, J]的文章 |
[Ma, P]的文章 |
[Chen, G]的文章 |
百度学术 |
百度学术中相似的文章 |
[Chen, J]的文章 |
[Ma, P]的文章 |
[Chen, G]的文章 |
必应学术 |
必应学术中相似的文章 |
[Chen, J]的文章 |
[Ma, P]的文章 |
[Chen, G]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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