Russian Journal of Physical Chemistry A

, Volume 91, Issue 13, pp 2503–2507 | Cite as

Phase and Physicochemical Properties Diagrams of Quaternary System Li2B4O7 + Na2B4O7 + Mg2B6O11 + H2O

  • Shi-qiang Wang
  • Xue-min Du
  • Yan Jing
  • Ya-fei Guo
  • Tian-long Deng
Physical Chemistry of Solutions


The phase and physicochemical properties diagrams of the quaternary system (Li2B4O7 + Na2B4O7 + Mg2B6O11) at 288.15 K and 0.1 MPa were constructed using the solubilities, densities, and refractive indices measured. In the phase diagrams of the system there are one invariant point, three univariant isothermic dissolution curves, and three crystallization regions corresponding to Li2B4O7 · 3H2O, Na2B4O7 · 10H2O, and Mg2B6O11 · 15H2O, respectively. The solution density, refractive index of the quaternary system changes regularly with the increasing of Li2B4O7 concentration. The calculated values of density and refractive index using empirical equations of the quaternary system are in good agreement with the experimental values.


stable phase equilibrium phase diagram lithium borate borax inderite 


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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • Shi-qiang Wang
    • 1
  • Xue-min Du
    • 1
  • Yan Jing
    • 1
  • Ya-fei Guo
    • 1
  • Tian-long Deng
    • 1
  1. 1.Tianjin Key Laboratory of Marine Resources and Chemistry, College of Chemical Engineering and Materials ScienceTianjin University of Science and TechnologyTianjinP.R. China

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