Ternary SLE Measurements for the Systems H2O+ZnCl2+Zn(H2PO2)2 at T= (298, 313 and 333) K | [Journal of Chemical Society of Pakistan • 2022]

Author(s):

1. Sevilay DEMİRCİ: Department of Chemical Engineering, Kafkas University, Kars 36100, Turkey

2. Vedat ADIGÜZEL: Department of Chemical Engineering, Siirt University,Siirt 56100,Turkey

3. Ömer SAHİN: Department of Chemical Engineering, Siirt University, Siirt 56100, Turkey.

4. Hasan ERGE: Department of Chemistry, Yüzüncüyıl University, Van 65000, Turkey.

Abstract:

The solid-liquid equilibrium (SLE) of H2O+ZnCl2+Zn(H2PO2)2 ternary system at 298, 313 and 333 K have been studied with the use of isothermal method. Solid phase compositions have been determined with Schreinemaker's method. H2O+ZnCl2+Zn(H2PO2)2 ternary systems have simple eutectic type in 298, 333K. One invariant point, two invariant curves and two crystallization region have been observed in the phase diagrams at 298, 333K. Otherwise, One invariant point, three invariant curves and two crystallization region have been observed in the phase diagrams in 313K. In the crystallization regions; (i) Zn(H2PO2).H2O and ZnCl2, (ii) Zn(H2PO2)2, Zn(H2PO2).H2O and ZnCl2, (iii) Zn(H2PO2)2 and ZnCl2 salts have been observed at 298 K, 313K, and 333 K, respectively. In H2O+ZnCl2+Zn(H2PO2)2 ternary system, the increasing salting-out effect of Zn(H2PO2)2 on ZnCl2 with temperature.

Page(s): 27-32

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 44, Issue: 1, Year: 2022

Keywords:

Density , Phase equilibria , zinc chloride , Zinc hypophosphite , Ternary system

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