scholarly journals Study of Phase Equilibrium of NaBr + KBr + H2O and NaBr + MgBr2 + H2O at 313.15 K

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Qing Chen ◽  
Jiping She ◽  
Yang Xiao
Keyword(s):  
Phase Equilibrium ◽  
Ternary System ◽  
Phase Diagrams ◽  
Invariant Point ◽  
Ternary Systems ◽  
Complex Salt ◽  
Chemical Methods ◽  
Data Phase ◽  
Saturation Method ◽  
Solid Phases

The phase equilibrium for the ternary systems NaBr + KBr + H2O and NaBr + MgBr2 + H2O at 313.15 K was investigated by isothermal solution saturation method. The solubilities of salts and the densities of saturated solutions in these ternary systems were determined by chemical methods, while the equilibrium solid phases were analyzed by Schreinermarker wet residues method. Based on the experimental data, phase diagrams and density versus composition diagrams were plotted. The two ternary systems were type of simple common-saturation and without complex salt and solid solution. There are in all two crystalline regions, two univariant curves, and one invariant point in these phase diagrams of two ternary systems at 313.15 K. The equilibrium solid phases in the ternary system NaBr + KBr + H2O are KBr and NaBr·2H2O, and those in the ternary system NaBr + MgBr2 + H2O are NaBr·2H2O and MgBr2·6H2O.

scholarly journals Two-phase equilibrium in binary and ternary systems II. The system methane-ethylene III. The system methane-ethane-ethylene

1940 ◽  
Vol 176 (964) ◽  
pp. 140-152 ◽  
Keyword(s):  
Phase Equilibrium ◽  
Ternary System ◽  
Binary Systems ◽  
Ternary Systems ◽  
Two Phase ◽  
Composition Diagram ◽  
Wide Range ◽  
Binary And Ternary Systems

The liquid-vapour equilibrium of the system methane-ethylene has been determined at 0, -42 , -78, -88 and -104° C over a wide range of pressures and the results are shown on a pressure-composition-temperature diagram and by a series of pressure-composition curves. The liquid-vapour equilibrium of the ternary system methane-ethane-ethylene has been determined at -104, -78 and 0° C. Values for the two binary systems methane-ethane and methane-ethylene and for the ternary system methane-ethane-ethylene are shown on a composite pressure-composition diagram.

The phase equilibrium diagram of the ternary system magnesium iodide-iodine-water

1981 ◽  
Vol 34 (11) ◽  
pp. 2449 ◽  
Author(s):  
R Thomas
Keyword(s):  
Phase Equilibrium ◽  
Ternary System ◽  
Equilibrium Diagram ◽  
Phase Equilibrium Diagram ◽  
Solid Phases

The phase equilibrium diagram of the ternary system MgI2-12-H2O has shown a single polyiodide, MgI12,,9H2O), and a new hydrate, MgI2,9H2O, to be stable solid phases at 0°C.

scholarly journals Phase Equilibria and Phase Diagrams for the Ternary Aqueous System Containing Lithium, Sodium, and Pentaborate Ions at 298.15 and 323.15 K and 101.325 kPa

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Panpan Li ◽  
Kaiyu Zhao ◽  
Shangqing Chen ◽  
Jiayin Hu ◽  
Yafei Guo ◽  
...  
Keyword(s):  
Refractive Index ◽  
Ternary System ◽  
Phase Equilibria ◽  
Phase Diagrams ◽  
Invariant Point ◽  
Aqueous System ◽  
Eutectic Type ◽  
Two Temperatures ◽  
Sodium Pentaborate Pentahydrate ◽  
Experimental Values

Phase equilibria and phase diagrams for the ternary aqueous system containing lithium, sodium, and pentaborate ions at 298.15 and 323.15 K and 101.325 kPa were investigated by the methods of isothermal dissolution equilibrium. From the experimental data, the phase diagrams and the diagrams of physicochemical properties versus composition of lithium pentaborate in the equilibrium systems were plotted, respectively. The phase diagrams of the ternary system LiB5O8 + NaB5O8 + H2O at two temperatures contain one invariant point, two univariant curves, and two crystallization regions corresponding to sodium pentaborate pentahydrate (NaB5O8·5H2O) and lithium pentaborate pentahydrate (LiB5O8·5H2O). Due to the different dissolution behaviors of pentaborate salts in the aqueous systems, the component of LiB5O8 has a relatively strong effect on the solubility of NaB5O8. It was found that this system belongs to a simple eutectic type at two temperatures, and neither double salts nor solid solutions were formed. The densities and refractive indices in the ternary system at 298.15 and 323.15 K are as similar as changing regularly with the increase of LiB5O8 concentration. On the basis of empirical equations of the density and refractive index in electrolytes, the calculated values of density and refractive index agreed well with the experimental values at two temperatures.

The phase equilibrium diagram of the ternary system strontium iodide-iodine-water

1982 ◽  
Vol 35 (1) ◽  
pp. 227 ◽  
Author(s):  
R Thomas
Keyword(s):  
Phase Equilibrium ◽  
Ternary System ◽  
Equilibrium Diagram ◽  
Phase Equilibrium Diagram ◽  
Solid Phases

The phase equilibrium diagram of the ternary system SrI2-I2-H2O has shown a single polyiodide SrI12,7H2O and the hydrate SrI2,7H2O to be stable solid phases at 0�C.

Phase Diagram and Research for the Ternary System of NaCl-CsCl-H2O at 50°C

2013 ◽  
Vol 706-708 ◽  
pp. 193-196 ◽  
Author(s):  
Yong Ming Zhang ◽  
Li Chun Ma ◽  
Cheng Lin Liu ◽  
Li Fang Chen ◽  
Dong Liang Shen ◽  
...  
Keyword(s):  
Experimental Data ◽  
Phase Diagram ◽  
Ternary System ◽  
Invariant Point ◽  
Equilibrium Phase ◽  
Ternary Systems ◽  
Practical Significance ◽  
Eutectic Type ◽  
Comprehensive Utilization ◽  
Isothermal Evaporation

The equilibria phase of the ternary systems NaCl-CsCl-H2O was studied at 50°C by the isothermal evaporation method. The equilibrium phase diagrams were plotted in line with the experimental data. It suggest that the phase diagram of NaCl-CsCl-H2O is the simple eutectic type where one invariant point is found to have the compositions of 12.3% NaCl, 54.1% CsCl and 33.6% H2O by mass, respectively. The study provide fundamental thermodynamic data of brine system that contains sodium and cesium, and has practical significance for the brine’s comprehensive utilization.

scholarly journals Solid-liquid phase equilibria of (H2O-Mn(H2PO2)2-MnCl2-NaCl), (H2O-Mn(H2PO2)2-MnCl2) and (H2O-NaCl- MnCl2) systems at 323.15 K

2020 ◽  
pp. 59-59
Author(s):  
Vedat Adiguzel ◽  
Wei Liu ◽  
Asadullah Memon ◽  
Hongtao Zhou ◽  
Imran Akbar ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Phase Equilibria ◽  
Quaternary System ◽  
Invariant Point ◽  
Solid Phase ◽  
Ternary Systems ◽  
Invariant Curves ◽  
Saturation Method ◽  
Solid Liquid ◽  
Liquid And Solid Phases

The solid-liquid phase equilibria (SLE) and densities of H2O-NaCl- -MnCl2-Mn(H2PO2)2 quaternary system, H2O-NaCl-MnCl2 and H2O-MnCl2- -Mn(H2PO2)2 ternary systems were investigated at 323.15 K by the isothermal solution saturation method. The analyses of the liquid and solid phases were used to determine the composition of the solid phase using the Schreinemakers graphic method. The ternary systems contain one invariant point, two invariant curves and two crystallization regions. In the quaternary system, there is one invariant point, three invariant curves, and three crystallization areas corresponding to NaCl, MnCl2 4H2O, and Mn(H2PO2)2H2O. The crystallization area of Mn(H2PO2)2 H2O, being the largest in comparison with those of other salts, occupied 80.75 % of the total crystallization area.

PHASE EQUILIBRIUM STUDIES FOR THE QUATERNARY SYSTEM URANYL NITRATE – ALUMINUM NITRATE – NITRIC ACID – WATER

1963 ◽  
Vol 41 (2) ◽  
pp. 531-536
Author(s):  
Robert D. Thibodeau ◽  
M. Adelman
Keyword(s):  
Phase Equilibrium ◽  
Phase Separation ◽  
Nitric Acid ◽  
Phase Diagrams ◽  
Uranyl Nitrate ◽  
Quaternary System ◽  
Aluminum Nitrate ◽  
Acid Water ◽  
Equilibrium Studies ◽  
Data Phase

The quaternary system UO2(NO3)2−Al(NO3)3−HNO3−H2O) was studied in the temperature range 0–20 °C, and the concentration range of 0–1.5 M Al(NO3)3 and 0–10 N HNO3. From the data, phase diagrams were prepared. No phase separation was evident at 30 °C and above, for the concentrations studied.

scholarly journals Determination and Calculation of Phase Equilibrium for Aqueous Ternary System (NH2)2CO+KCl+H2O at 283.15K

2020 ◽  
Vol 185 ◽  
pp. 04045
Author(s):  
Xue Hu ◽  
Tianxiang Li ◽  
Ruizhe Wang ◽  
Jiamin Yang ◽  
Qiang Wu ◽  
...  
Keyword(s):  
Phase Equilibrium ◽  
Ternary System ◽  
Calculated Data ◽  
Solubility Data ◽  
Average Deviation ◽  
Nrtl Model ◽  
Wilson Model ◽  
Isothermal Saturation ◽  
Saturation Method ◽  
Solid Liquid

The solid-liquid phase equilibrium for ternary system (NH2)2CO+KCl+H2O was determined by isothermal saturation method at 283.15K under atmosphere pressure. The isothermal phase diagrams was drawn in according to the measured solubility data. There are one co-saturated point and two pure solids occurred in this ternary system. The solid phases were confirmed by Schreinemaker’s wet residue method and X-ray powder diffraction. Two thermodynamic models, Wilson model and NRTL model, were used to calculate the solubility data. The value of root mean-square deviation in Wilson model and NRTL model for this ternary system was 0.22 and 0.66 respectively, and the value of relative average deviation was 0.61% and 2.33% respectively, which indicated that the calculated data and the experimental results are nearly consistent.

scholarly journals Solid-Liquid Phase Equilibria for the Ternary System KNO3 + KH2PO4 + H2O at 283.15, 298.15, and 313.15 K

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Jun-feng Wan ◽  
Fei Wang
Keyword(s):  
Liquid Phase ◽  
Ternary System ◽  
Phase Equilibria ◽  
Phase Diagrams ◽  
Solubility Data ◽  
Basic Data ◽  
Data Support ◽  
Different Temperatures ◽  
Solid Phases ◽  
Solid Liquid

The solid-liquid phase equilibria of the ternary system KNO3 + KH2PO4 + H2O at the temperatures of 283.15, 298.15, and 313.15 K and the pressure of  0.1 MPa are researched by isothermal solution saturation. The equilibria solid phases are researched by Schreinemakers method (wet residues). The solubility data are determined. Based on these data, the phase diagrams and the crystalline areas are determined. The phase equilibria at different temperatures are compared and discussed. All results can provide basic data support for crystallization and further researches.

Calculation of phase diagrams and thermodynamic properties of 14 additive and reciprocal ternary systems containing Li2CO3, Na2CO3, K2CO3, Li2SO4, Na2SO4, K2SO4, LiOH, NaOH, and KOH

1984 ◽  
Vol 62 (3) ◽  
pp. 457-474 ◽  
Author(s):  
A. D. Pelton ◽  
C. W. Bale ◽  
P. L. Lin
Keyword(s):  
Phase Diagram ◽  
Thermodynamic Properties ◽  
Molten Salt ◽  
Phase Diagrams ◽  
Binary Systems ◽  
Ternary Phase ◽  
Ternary Phase Diagram ◽  
Ternary Systems ◽  
Maximum Error ◽  
Critical Assessment

Phase diagrams and thermodynamic properties of five additive molten salt ternary systems and nine reciprocal molten salt ternary systems containing the ions Li+, Na+, [Formula: see text], OH− are calculated from the thermodynamic properties of their binary subsystems which were obtained previously by a critical assessment of the thermodynamic data and the phase diagrams in these binary systems. Thermodynamic properties of ternary liquid phases are estimated from the binary properties by means of the Conformal Ionic Solution Theory. The ternary phase diagrams are then calculated from these thermodynamic properties by means of computer programs designed for the purpose. It is found that a ternary phase diagram can generally be calculated in this way with a maximum error about twice that of the maximum error in the binary phase diagrams upon which the calculations are based. If, in addition, some reliable ternary phase diagram measurements are available, these can be used to obtain small ternary correction terms. In this way, ternary phase diagram measurements can be smoothed and the isotherms drawn in a thermodynamically correct way. The thermodynamic approach permits experimental data to be critically assessed in the light of thermodynamic principles and accepted solution models. A critical assessment of error limits on all the calculated ternary diagrams is made, and suggestions as to which composition regions merit further experimental study are given.

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