Sevilay DEMİRCİ, Vedat ADIGÜZEL, Ömer ŞAHİN

NaCl+NaH2PO2+H2O Üçlü Sisteminin 333 K’de Çözünürlük ve Fizikokimyasal Özellik Değişimlerinin İncelenmesi

NaCl+NaH2PO2+H2O üçlü sisteminin 333 K’de katı-sıvı denge verileri ve fizikokimyasal özellikleri izotermal yöntem kullanılarak araştırılmıştır. Katı faz bileşimleri Schreinemaker yöntemi ile belirlenmiştir. NaCl+NaH2PO2+H2O üçlü sisteminin basit ötonik yapıya sahip olduğu tespit edilmiştir. Faz eğrisinde, bir ötonik nokta, iki invariant eğrisi ve iki kristallenme bölgesi görülmüştür. Kristallenme bölgelerinde NaCl ve NaH2PO2.H2O yapıları tespit edilmiştir. NaCl+NaH2PO2+H2O üçlü sisteminde NaH2PO2’in NaCl üzerine salting-out (çözeltiden tuz uzaklaştırma) etkisi gözlenmiştir.

Anahtar Kelimeler:

Fizikokimyasal özellik, Katı-sıvı faz dengeleri, NaCl, NaH2PO2, Üçlü sistem

An Investigation of the Solubility and Changes in Physicochemical Properties of NaCl+NaH2PO2+H2O Ternary System at 333 K

Solid-liquid equilibria and physicochemical properties of NaCl+NaH2PO2+H2O ternary system were investigated using isothermal method at 333 K. Solid phase compositions were obtained via Schreinemaker method. NaCl+NaH2PO2+H2O ternary system is simple eutectic type. One eutectic point, two invariant curves and two crystallization areas were seen in phase diagram. NaCl and NaH2PO2.H2O salts were determined in solid phase. It has been observed that NaH2PO2 has salting-out effect on NaCl in NaCl+NaH2PO2+H2O ternary system.

Keywords:

Physicochemical properties, Solid liquid phase equilibria, NaCl, NaH2PO2, Ternary system,

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