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Solid and Liquid Metastable Phase Equilibria in the Aqueous Quaternary System Li+, Mg2+//SO42-, Borate-H2O at 273.15 K
Meng Lingzong1,2,3; Guo Yafei1,2; Li Dan2,3; Deng Tianlong1
2017-08-01
Source PublicationCHEMICAL RESEARCH IN CHINESE UNIVERSITIES
Volume33Issue:4Pages:655-659
SubtypeArticle
AbstractThe metastable phase equilibria of the Li+, Mg2+//SO42-, borate-H2O system at 273.15 K were studied using isothermal evaporation method. The dry-salt phase diagram, water-phase diagram and the physicochemical property diagrams of the system were plotted with the metastable solubility values and physicochemical properties corresponding to density, refractive index, pH value and conductivity. The dry-salt diagram was composed of four crystallizing zones [lithium sulfate hydrate(Li2SO4 center dot H2O), epsomite(MgSO4 center dot 7H(2)O), lithium metaborate octahydrate(LiB02.8H20), and hungchaoite(MgB407 center dot 9H20)], five univariant curves and two invariant points (Li2SO4 center dot H2O+MgSO(4 center dot)7H(2)O+MgB4O7 center dot 9H(2)O and Li2SO4 center dot H2O+LiBO2 center dot 8H(2)O+Mg4O7 center dot 9H(2)O)center dot Li2B4O7 converted into LiBO2 in solution. Comparing the metastable phase diagram at 273.15 K and stable phase diagram at 298.15 K for the system, the crystallized area of Li2SO4 center dot H2O and MgSOO4 center dot 7H(2)O became large, whereas, the other phase regions became small. The J(H2O) changes regularly with increasing J(SO42-), and the physicochemical properties change regularly with the concentration of B4O72- increasing.
KeywordMetastable Phase Equilibrium Phase Diagram Solubility Lithium Metaborate Octahydrate Hungchaoite
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000407988500023
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6250
Collection青海盐湖研究所知识仓储
Affiliation1.Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin Key Lab Marine Resources & Chem, Tianjin 300457, Peoples R China
2.Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China
3.Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Salt Lake Resources & Chem, Xining 810008, Qinghai, Peoples R China
Recommended Citation
GB/T 7714
Meng Lingzong,Guo Yafei,Li Dan,et al. Solid and Liquid Metastable Phase Equilibria in the Aqueous Quaternary System Li+, Mg2+//SO42-, Borate-H2O at 273.15 K[J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2017,33(4):655-659.
APA Meng Lingzong,Guo Yafei,Li Dan,&Deng Tianlong.(2017).Solid and Liquid Metastable Phase Equilibria in the Aqueous Quaternary System Li+, Mg2+//SO42-, Borate-H2O at 273.15 K.CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,33(4),655-659.
MLA Meng Lingzong,et al."Solid and Liquid Metastable Phase Equilibria in the Aqueous Quaternary System Li+, Mg2+//SO42-, Borate-H2O at 273.15 K".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 33.4(2017):655-659.
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