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The measurement of hydration heats for magnesium chloride with low water by means of DSC
Chen, J; Ma, P; Chen, G; Chen, F
2001
发表期刊JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷号65期号:3页码:777-786
文章类型Article
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.
关键词Adsorption Heat Dsc Gas Chromatography Hydration Heat Magnesium Chloride With Low Water
WOS标题词Science & Technology ; Physical Sciences
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Analytical ; Chemistry, Physical
WOS记录号WOS:000171147100011
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6061
专题青海盐湖研究所知识仓储
作者单位1.Qinghai Univ, Coll Chem Engn, Xining 810016, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810016, Peoples R China
3.Zhejiang Univ, Coll Chem Engn, Hangzhou 310027, Peoples R China
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GB/T 7714
Chen, J,Ma, P,Chen, G,et al. The measurement of hydration heats for magnesium chloride with low water by 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 water by 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 water by means of DSC".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 65.3(2001):777-786.
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