NH4Cl + NH4NO3+ H2O Ternary Mixed Electrolyte System: Thermodynamic Modeling Based on Potentiometric Measurements

2008 ◽  
Vol 53 (10) ◽  
pp. 2301-2306 ◽  
Author(s):  
Farzad Deyhimi ◽  
Rahman Salamat-Ahangari
2017 ◽  
Vol 436 ◽  
pp. 1-12 ◽  
Author(s):  
Bahram Ghalami-Choobar ◽  
Mahmoud Azizpour ◽  
Hossein Ghanadzadeh Gilani ◽  
Naz Chaibakhsh

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Mohamad Javad Kamali ◽  
Zakarya Kamali ◽  
Gholamhossein Vatankhah

Thermodynamic modeling of surface tension of different electrolyte systems in presence of gas phase is studied. Using the solid-liquid equilibrium, Langmuir gas-solid adsorption, and ENRTL activity coefficient model, the surface tension of electrolyte solutions is calculated. The new model has two adjustable parameters which could be determined by fitting the experimental surface tension of binary aqueous electrolyte solution in single temperature. Then the values of surface tension for other temperatures in binary and ternary system of aqueous electrolyte solution are predicted. The average absolute deviations for calculation of surface tension of binary and mixed electrolyte systems by new model are 1.98 and 1.70%, respectively.


Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4047
Author(s):  
Valeriia Baranauskaite ◽  
Maria Belysheva ◽  
Olga Pestova ◽  
Yuri Anufrikov ◽  
Mikhail Skripkin ◽  
...  

Thermodynamic data on the properties of the water-based electrolyte systems are very valuable for fundamental physical chemistry and for industrial applications. The missing data both on the dilution and dissolution enthalpies for the ternary CsCl−MgCl2−H2O mixed electrolyte system were investigated by means of the calorimetry method. The dilution calorimetry was performed at 298 K for the set of solutions from diluted to concentrated at constant ratio Cs+/Mg2+=1.8. The relative partial molar enthalpies, ideal, total, and excess ones were calculated. By means of the dissolution calorimetry, the standard enthalpies of formation, the enthalpies, and entropies for the double salt formation from simple salts were evaluated. The results obtained indicate that entropy as the major factor affecting the formation of the joint compound, both in the liquid and solid phases. These data can be implemented in thermodynamic databases and allow for accurate thermodynamic calculations for the salts extraction from natural water sources and for its possible application as thermochemical energy storage.


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