Solubility and physic-chemical properties of NaH2PO4 in phosphoric acid, sodium chloride and their mixture solutions at T=(298.15 and 313.15)K

Zhang, Xiaorui; Liu, Chengqi; Shen, Wei; Ren, Yongsheng; Li, Danyang

doi:10.1016/j.jct.2015.06.038

Cited by 19 publications

(5 citation statements)

References 18 publications

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“…NaH 2 PO 4 (SDP) is an impressive material due to the high stability of sodium ions and potential technological applications. 21 It is useful in food, water treatment, medicine, cement, and other fields. 22 The conductivity of CDP increases up to 1 to 3 orders of magnitude by SDP at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

A synergistic approach to achieving high conduction and stability of CsH₂PO₄/NaH₂PO₄/ZrO₂ composites for fuel cells

et al. 2022

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Section: Introductionmentioning

confidence: 99%

A synergistic approach to achieving high conduction and stability of CsH₂PO₄/NaH₂PO₄/ZrO₂ composites for fuel cells

et al. 2022

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“…As shown in eq , the equilibrium shifts to the right, and with the conversion of H 2 PO 4 – to H 5 P 2 O 8 – , the equilibrium in eq shifts to the right. Therefore, H 3 PO 4 has an obvious promoting effect on KH 2 PO 4 , thus increasing the solubility of KH 2 PO 4 …”

Section: Results and Discussionmentioning

confidence: 99%

“…Therefore, H 3 PO 4 has an obvious promoting effect on KH 2 PO 4 , thus increasing the solubility of KH 2 PO 4 . 25 On the basis of the data in Table 4, the physical properties of the saturated equilibrium solution were plotted in Figures 5 and 6. For the physical properties of the solution, as shown in Figures 5 and 6, at 298.15 K, with the concentration of H 3 PO 4 increasing, the density increased from 1.1931 g•cm −3 to 1.5524 g•cm −3 , and viscosity increased from 0.8806 mPa•s to 1.2884 5.…”

Section: Resultsmentioning

confidence: 99%

Solid–Liquid Phase Equilibria of the KH₂PO₄–KCl–H₃PO₄–H₂O and KH₂PO₄–KCl–C₂H₅OH–H₂O Systems at T = (298.15 and 313.15) K

Ren

Liu

2018

J. Chem. Eng. Data

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Solid−liquid phase equilibrium and physical properties of KH 2 PO 4 in the mixture solution at 298.15 and 313.15 K were determined by an isothermal solution saturation method and moist residues. According to the experimental data, the solubility curves and physical parameter (μ, ρ) curves of KH 2 PO 4 −KCl−H 3 PO 4 −H 2 O systems were plotted. In a mixture solution of KCl and H 3 PO 4 , the solubility of KH 2 PO 4 increased with the increasing concentration of H 3 PO 4 and decreased with the increaing solubility of KCl because of the same ion effect. For the system of KH 2 PO 4 − KCl−C 2 H 5 OH−H 2 O at 298.15K, corresponding phase diagrams and diagrams of physical properties were plotted on the basis of the experimental data, and the initial mass fraction of ethanol was 10%, 30%, and 50% in the salt-free binary solvent water + ethanol. In the phase diagrams, there are one invariant point, two univariant curves, and two crystallization regions corresponding to KCl and KH 2 PO 4 . In addition, the crystallization region of KH 2 PO 4 is larger than that of KCl, and the two crystallization regions become smaller as the mass fraction of water + ethanol mixture solvent increased. The physical properties of the system KH 2 PO 4 −KCl−C 2 H 5 OH−H 2 O changed regularly with the concentration change of the liquid phase. The equilibrium solids were verified by X-ray diffraction. The measured data and physical property diagrams for the investigated systems can provide the fundamental basis for the industrial production of KH 2 PO 4 by the solvent extraction method.

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“…The solid–liquid equilibrium of the ternary BaO–P 2 O 5 –H 2 O system at 323.2 K was studied by the isothermal dissolution equilibrium method − adding excessive Ba(OH) 2 ·8H 2 O to water to ensure that the solid still exists after full dissolution. Phosphoric acid of different masses was added into each Ba(OH) 2 ·8H 2 O saturated solution separately.…”

Section: Methodsmentioning

confidence: 99%

Experimental Determination and Fitting of Solid–Liquid Equilibria in the Ternary System BaO–P₂O₅–H₂O at 323.2 K

Zheng

Jin

et al. 2019

J. Chem. Eng. Data

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In this work, solubilities and physicochemical properties including pH, density, and refractive index were studied by the isothermal dissolution equilibrium method for the ternary system BaO−P 2 O 5 −H 2 O at 323.2 K. The obtained ternary phase diagram contained seven invariant points, five univariant curves, and five crystallization regions, corresponding to Ba(OH) 2 •8H 2 O, [Ba 5 (PO 4 ) 3 (OH)•(BaHPO 4 ) 1.5 ], [Ba 5 (PO 4 ) 3 (OH)• (BaHPO 4 ) 8.5 ], BaHPO 4 , and Ba(H 2 PO 4 ) 2 , respectively. Those crystals were characterized by X-ray diffraction and scanning electron microscopy. The estimation models were obtained by fitting the univariant curves corresponding to the crystallization regions of BaHPO 4 and Ba(H 2 PO 4 ) 2 . The properties including the refractive index, density, and mass fraction of P 2 O 5 and BaO could be estimated by putting the pH into those models. The comparisons showed that the calculated values were in good coincidence with the experimental data. All the data and results obtained in this paper could be used to improve the desulfurization effect of wet-process phosphoric acid (WPA) and help WPA gradually replace thermal-process phosphoric acid.

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Solubility and physic-chemical properties of NaH2PO4 in phosphoric acid, sodium chloride and their mixture solutions at T=(298.15 and 313.15)K

Cited by 19 publications

References 18 publications

A synergistic approach to achieving high conduction and stability of CsH₂PO₄/NaH₂PO₄/ZrO₂ composites for fuel cells

A synergistic approach to achieving high conduction and stability of CsH₂PO₄/NaH₂PO₄/ZrO₂ composites for fuel cells

Solid–Liquid Phase Equilibria of the KH₂PO₄–KCl–H₃PO₄–H₂O and KH₂PO₄–KCl–C₂H₅OH–H₂O Systems at T = (298.15 and 313.15) K

Experimental Determination and Fitting of Solid–Liquid Equilibria in the Ternary System BaO–P₂O₅–H₂O at 323.2 K

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Solubility and physic-chemical properties of NaH2PO4 in phosphoric acid, sodium chloride and their mixture solutions at T=(298.15 and 313.15)K

Cited by 19 publications

References 18 publications

A synergistic approach to achieving high conduction and stability of CsH2PO4/NaH2PO4/ZrO2 composites for fuel cells

A synergistic approach to achieving high conduction and stability of CsH2PO4/NaH2PO4/ZrO2 composites for fuel cells

Solid–Liquid Phase Equilibria of the KH2PO4–KCl–H3PO4–H2O and KH2PO4–KCl–C2H5OH–H2O Systems at T = (298.15 and 313.15) K

Experimental Determination and Fitting of Solid–Liquid Equilibria in the Ternary System BaO–P2O5–H2O at 323.2 K

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A synergistic approach to achieving high conduction and stability of CsH₂PO₄/NaH₂PO₄/ZrO₂ composites for fuel cells

A synergistic approach to achieving high conduction and stability of CsH₂PO₄/NaH₂PO₄/ZrO₂ composites for fuel cells

Solid–Liquid Phase Equilibria of the KH₂PO₄–KCl–H₃PO₄–H₂O and KH₂PO₄–KCl–C₂H₅OH–H₂O Systems at T = (298.15 and 313.15) K

Experimental Determination and Fitting of Solid–Liquid Equilibria in the Ternary System BaO–P₂O₅–H₂O at 323.2 K