Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (5): 757.

• Articles • Previous Articles     Next Articles

Studies on the Isothermal Solubility for Quinary System K22+,Mg2+//Cl22-,SO42--CO(NH2)2-H2O and Its Boundary System MgSO4-MgCl2-CO(NH2)2-H2O at 25℃

ZHANG Feng-Xing, WEI Xiao-Lan, LI Jun   

  1. Department of Chemistry, Northwest University, Xi'an 710069, China
  • Received:2002-07-09 Online:2003-05-24 Published:2003-05-24

Abstract: The isothermal solubility for quinary system K22+,Mg2+//Cl22-,SO42--CO(NH2)2-H2Oand its boundary system MgSO4-MgCl2-CO(NH2)2-H2O at 25 ℃ have been determined. The solubility diagrams of the system have been drawn. The results showed that the presence of urea in the system is in favor of the process of the reaction K2Cl2+MgSO4→K2SO4+MgCl2.

Key words: Phase equilibrium, Solubility diagram, Potassium chloride, Potassium sulfate, Magnesium chloride, Magnesium sulfate, Urea

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