Hydrothermal synthesis of sodium zirconium silicates and characterization of their properties Academic Article uri icon


  • By studying reactions in the system Zr(OC3H7)4-silicic acid (Na2SiO3, Na2Si3O7)-NaOH-H2O under mild hydrothermal conditions (180-190C) the formation of three novel layered sodium zirconium silicates, Na2Zr5Si2O153H2O, Na2Zr5Si2O154H2O, and Na2ZrSi3O93H2O, and five other compounds: Na4Zr2Si3O12, Na3HZrSi2O8, Na4Zr2Si5O16H2O, Na4ZrSi3O10, and Na2ZrSi3O92H2O, have been found. All the synthesized materials were characterized by elemental analysis, TGA, X-ray, IR, and 29Si MAS NMR spectroscopy. The ion-exchange behavior of sodium zirconium silicates toward alkali, alkaline-earth, and some di- and trivalent metal cations was studied.

published proceedings


altmetric score

  • 3.5

author list (cited authors)

  • Bortun, A. I., Bortun, L. N., & Clearfield, A.

citation count

  • 40

complete list of authors

  • Bortun, AI||Bortun, LN||Clearfield, A

publication date

  • August 1997