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Citation: ZHANG Jun, GAO Shi-Yang, XIA Shu-Ping. Isothermal Mutual Solubility and Phase Relation of Mg²⁺,Li⁺//SO₄^2--C₂H₅OH-H₂O System at 25℃[J]. Chinese Journal of Applied Chemistry, ;2003, 20(2): 175-177. shu

Isothermal Mutual Solubility and Phase Relation of Mg²⁺,Li⁺//SO₄^2--C₂H₅OH-H₂O System at 25℃

ZHANG Jun ^a,c ,
GAO Shi-Yang ^a,b ,
XIA Shu-Ping ^b,,

1.
a College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000;
2.
b Institute of Salt Lakes, Xi'an Branch, Chinese Academy of Sciences, Xi'an;
3.
c College of Chemical Engineering, Henan University of Science and Technology, Luoyang

Corresponding author: XIA Shu-Ping,
Received Date: 29 May 2002
Available Online: 15 November 2002
Fund Project: 国家自然科学基金资助项目(29971032) (29971032)

The isothermal mutual solubility and phase relation of MgSO₄-Li₂SO₄-C₂H₅OH-H₂O system at 25℃ have been investigated by using a homemade micro-equilibrium and sampling apparatus. The demixing phenomenon of the system's at below room temperature was observed. The precise demixing composition and composition of double-saturated point of the system have been determined. A unique effect, namely additive property between MgSO₄ and Li₂SO₄ has been observed and explained in terms of "pseudo-ternary system" concept. An empirical formula has been worked out to correlate the mutual solubility.
- MgSO₄,
- Li₂SO₄,
- C₂H₅OH,
- mutual solubility,
- phase relation
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Isothermal Mutual Solubility and Phase Relation of Mg2+,Li+//SO42--C2H5OH-H2O System at 25℃

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Isothermal Mutual Solubility and Phase Relation of Mg²⁺,Li⁺//SO₄^2--C₂H₅OH-H₂O System at 25℃