Solid–Liquid Phase Equilibrium for the Ternary System (Potassium Chloride + Potassium Dihydrogen Phosphate + Water) at (298.15 and 313.15) K

2015 ◽  
Vol 60 (7) ◽  
pp. 2070-2078 ◽  
Author(s):  
Wei Shen ◽  
Yongsheng Ren ◽  
Xiaorui Zhang ◽  
Yuqin Shi
Keyword(s):  
Phase Equilibrium ◽  
Liquid Phase ◽  
Ternary System ◽  
Potassium Chloride ◽  
Potassium Dihydrogen Phosphate ◽  
Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Solid Liquid

scholarly journals KH2PO4 crystallisation from potassium chloride and ammonium dihydrogen phosphate

2016 ◽  
Vol 18 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Kristina Jančaitienė ◽  
Rasa Šlinkšienė
Keyword(s):  
Aqueous Solutions ◽  
Potassium Chloride ◽  
Solid Phase ◽  
Potassium Dihydrogen Phosphate ◽  
Molar Ratio ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Potassium Dihydrogen ◽  
Increasing Temperature ◽  
Nitrogen Phosphorus

Abstract Seeking to obtain bulk (NPK – nitrogen, phosphorus, potassium), chlorine-free fertilizers, the influence of interaction between potassium chloride and ammonium dihydrogen phosphate in aqueous solutions at temperature of 20, 40, 60 and 80°C has been investigated. Components of the solid phase have been identified by methods of chemical and instrumental analysis: radiography (X – ray), infra – red molecular absorption spectroscopy (IR) and scanning electron microscopy (SEM). It has been observed that the largest amount of solid state potassium dihydrogen phosphate was obtained at 60–80°C, when the potassium chloride and ammonium dihydrogen phosphate molar ratio is equal 0.8:0.2. Changing the molar ratio of 0.5:0.5 to 0.8:0.2, and with increasing temperature, various shaped crystals have developed in the remaining aqueous solutions with a morphology shifting from sharp needles to tetragonal prism.

Stable (solid+liquid) phase equilibrium for the ternary system (NaCl+RbCl+H2O) at T=(288.15, 298.15 and 308.15)K

2017 ◽  
Vol 106 ◽  
pp. 256-261 ◽  
Author(s):  
Yunxue Gao ◽  
Shuni Li ◽  
Quanguo Zhai ◽  
Yucheng Jiang ◽  
Mancheng Hu
Keyword(s):  
Phase Equilibrium ◽  
Liquid Phase ◽  
Ternary System ◽  
Solid Liquid

(Solid+liquid) phase equilibrium for the ternary system (K2CO3-Na2CO3-H2O) at T=(323.15, 343.15, and 363.15) K

2017 ◽  
Vol 108 ◽  
pp. 1-6 ◽  
Author(s):  
Congcong Yin ◽  
Meitang Liu ◽  
Jing Yang ◽  
Hongwen Ma ◽  
Zheng Luo
Keyword(s):  
Phase Equilibrium ◽  
Liquid Phase ◽  
Ternary System ◽  
Solid Liquid
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