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Metastable Phase Equilibrium in the Aqueous Ternary System (Li2SO4 + MgSO4 + H2O) at 348.15 K
Deng, Tianlong1,2; Yin, Hongjun1; Li, Dongchan1,2
2009-02-01
发表期刊JOURNAL OF CHEMICAL AND ENGINEERING DATA
卷号54期号:2页码:498-501
文章类型Article
摘要The metastable solubilities and physicochemical properties (densities and refractive index) of the aqueous ternary system (Li2SO4 + MgSO4 + H2O) at 348.15 K were determined for the first time by the method of isothermal evaporation, and the metastable phase diagram and the diagrams of physicochemical properties versus composition were plotted. It was found that there is one invariant point of (Li2SO4 center dot H2O+MgSO4 center dot 4H(2)O), two univariant curves, and two crystallization regions corresponding to lithium sulfate monohydrate (Li2SO4 center dot H2O) and tetrahydrite (MgSO4 center dot 4H(2)O) in the metastable ternary system. The system belongs to a hydrate type I, and neither double salts nor solid solutions were formed. A comparison of the stable and metastable phase diagrams at this temperature shows that the metastable phenomenon of magnesium sulfate is obvious, and the crystallizing region of tetrahydrite is much smaller than that in the stable phase diagram. The solution density and refractive index of the metastable ternary system changes regularly with the mass fraction of lithium sulfate and reaches a maximum value at an invariant point. The densities and refractive index were correlated with empirical equations.
WOS标题词Science & Technology ; Physical Sciences ; Technology
关键词[WOS]QUATERNARY SYSTEM ; 308.15 K
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Multidisciplinary ; Engineering, Chemical
WOS记录号WOS:000263371000058
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5921
专题青海盐湖研究所知识仓储
作者单位1.Chengdu Univ Sci & Technol, Coll Mat Chem & Chem Engn, Chengdu 610059, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
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GB/T 7714
Deng, Tianlong,Yin, Hongjun,Li, Dongchan. Metastable Phase Equilibrium in the Aqueous Ternary System (Li2SO4 + MgSO4 + H2O) at 348.15 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2009,54(2):498-501.
APA Deng, Tianlong,Yin, Hongjun,&Li, Dongchan.(2009).Metastable Phase Equilibrium in the Aqueous Ternary System (Li2SO4 + MgSO4 + H2O) at 348.15 K.JOURNAL OF CHEMICAL AND ENGINEERING DATA,54(2),498-501.
MLA Deng, Tianlong,et al."Metastable Phase Equilibrium in the Aqueous Ternary System (Li2SO4 + MgSO4 + H2O) at 348.15 K".JOURNAL OF CHEMICAL AND ENGINEERING DATA 54.2(2009):498-501.
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