ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

 Experimental study of the phase equilibria in the systems NaCl—NaF—Na₃FSO₄ and NaCl—Na₂SO₄ —Na₃FSO₄

J. Gabčová and I. Koštenská

Department of Chemical Technology of Inorganic Substances, Slovak Technical University, CS-812 37Bratislava

Abstract:  Phase equilibria in the ternary systems NaCl—NaF—Na₃FSO₄ and NaCl—Na₂SO₄ —Na₃FSO₄  have been investigated using the thermal analysis method. Both systems were found to be simple eutectic systems, the coordi­nates of the ternary eutectic points being: system NaCl—NaF—Na₃FSO₄: 62.0 mole % NaCl, 11.4 mole % NaF, 26.6 mole % Na₃FSO₄, T(E) = 898K ; system NaCl—Na₂SO₄ —Na₃FSO₄:54.6 mole % NaCl, 31.8 mole % Na₂SO₄, 13.6 mole % Na₃FSO₄, T(E) = 869K.

Full paper in Portable Document Format: 384a449.pdf

Chemical Papers 38 (4) 449–454 (1984)