The Experts below are selected from a list of 12 Experts worldwide ranked by ideXlab platform
Hang Su - One of the best experts on this subject based on the ideXlab platform.
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liquid liquid equilibria of ionic liquid 1 butyl pyridinium tetrafluoroborate and ammonium Citrate Trisodium Citrate sodium succinate sodium acetate aqueous two phase systems at 303 15 k experiment and correlation
Journal of Molecular Liquids, 2014Co-Authors: Yuliang Li, Mengshi Zhang, Hang Su, Cheng ShenAbstract:Abstract Liquid–liquid equilibrium data have been determined for 1-butyl-pyridinium tetrafluoroborate([Bpy]BF4) + ammonium Citrate ((NH4)3C6H5O7)/Trisodium Citrate (Na3C6H5O7)/sodium succinate (Na2C4H4O4)/sodium acetate(CH3COONa) aqueous two-phase systems at T = 303.15 K, respectively. The effective excluded volume (EEV) values obtained from the binodal model for these four systems were determined, which indicates that the salting-out abilities of the four salts follow the order: Na3C6H5O7 > (NH4)3C6H5O7, Na3C6H5O7 > Na2C4H4O4 > CH3COONa. Then the binodal data were modeled by Merchuk and another two parameter equations. The Othmer–Tobias, Bancroft, two-parameter and Setschenow-type equations were used for the correlation of the tie-line data. Both the correlations of binodal data and tie-line data show good agreement for the investigated systems.
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phase behaviour for aqueous two phase systems containing the ionic liquid 1 butylpyridinium tetrafluoroborate 1 butyl 4 methylpyridinium tetrafluoroborate and organic salts sodium tartrate ammonium Citrate Trisodium Citrate at different temperatures
The Journal of Chemical Thermodynamics, 2013Co-Authors: Yuliang Li, Mengshi Zhang, Hang SuAbstract:Abstract The binodal curves of 1-butylpyridinium tetrafluoroborate + sodium tartrate at T = (298.15, 308.15 and 328.15) K and 1-butyl-4-methylpyridinium tetrafluoroborate + sodium tartrate/ammonium Citrate/Trisodium Citrate at T = 298.15 K were experimentally determined. Three empirical equations were used to correlate the binodal data. The tie-line data were successfully correlated using the Othmer–Tobias and Bancroft and two-parameter equations. Factors affecting the binodal curves, such as temperature and the nature of the ionic liquids, were also studied. The two-phase area expanded with a decrease in temperature, whereas the absolute value of the slope of the ties slightly decreased with an increase in temperature. With an increase in the alkyl chain length of the ionic liquids (ILs) in the investigated systems, the binodal curves shifted closer to the origin. Finally, the effective excluded volume (EEV) values obtained from the binodal model were determined, and the salting-out ability decreased in the following order: Na3C6H5O7 > Na2C4H4O6 > (NH4)3C6H5O7.
Yuliang Li - One of the best experts on this subject based on the ideXlab platform.
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liquid liquid equilibria of ionic liquid 1 butyl pyridinium tetrafluoroborate and ammonium Citrate Trisodium Citrate sodium succinate sodium acetate aqueous two phase systems at 303 15 k experiment and correlation
Journal of Molecular Liquids, 2014Co-Authors: Yuliang Li, Mengshi Zhang, Hang Su, Cheng ShenAbstract:Abstract Liquid–liquid equilibrium data have been determined for 1-butyl-pyridinium tetrafluoroborate([Bpy]BF4) + ammonium Citrate ((NH4)3C6H5O7)/Trisodium Citrate (Na3C6H5O7)/sodium succinate (Na2C4H4O4)/sodium acetate(CH3COONa) aqueous two-phase systems at T = 303.15 K, respectively. The effective excluded volume (EEV) values obtained from the binodal model for these four systems were determined, which indicates that the salting-out abilities of the four salts follow the order: Na3C6H5O7 > (NH4)3C6H5O7, Na3C6H5O7 > Na2C4H4O4 > CH3COONa. Then the binodal data were modeled by Merchuk and another two parameter equations. The Othmer–Tobias, Bancroft, two-parameter and Setschenow-type equations were used for the correlation of the tie-line data. Both the correlations of binodal data and tie-line data show good agreement for the investigated systems.
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phase behaviour for aqueous two phase systems containing the ionic liquid 1 butylpyridinium tetrafluoroborate 1 butyl 4 methylpyridinium tetrafluoroborate and organic salts sodium tartrate ammonium Citrate Trisodium Citrate at different temperatures
The Journal of Chemical Thermodynamics, 2013Co-Authors: Yuliang Li, Mengshi Zhang, Hang SuAbstract:Abstract The binodal curves of 1-butylpyridinium tetrafluoroborate + sodium tartrate at T = (298.15, 308.15 and 328.15) K and 1-butyl-4-methylpyridinium tetrafluoroborate + sodium tartrate/ammonium Citrate/Trisodium Citrate at T = 298.15 K were experimentally determined. Three empirical equations were used to correlate the binodal data. The tie-line data were successfully correlated using the Othmer–Tobias and Bancroft and two-parameter equations. Factors affecting the binodal curves, such as temperature and the nature of the ionic liquids, were also studied. The two-phase area expanded with a decrease in temperature, whereas the absolute value of the slope of the ties slightly decreased with an increase in temperature. With an increase in the alkyl chain length of the ionic liquids (ILs) in the investigated systems, the binodal curves shifted closer to the origin. Finally, the effective excluded volume (EEV) values obtained from the binodal model were determined, and the salting-out ability decreased in the following order: Na3C6H5O7 > Na2C4H4O6 > (NH4)3C6H5O7.
Mengshi Zhang - One of the best experts on this subject based on the ideXlab platform.
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liquid liquid equilibria of ionic liquid 1 butyl pyridinium tetrafluoroborate and ammonium Citrate Trisodium Citrate sodium succinate sodium acetate aqueous two phase systems at 303 15 k experiment and correlation
Journal of Molecular Liquids, 2014Co-Authors: Yuliang Li, Mengshi Zhang, Hang Su, Cheng ShenAbstract:Abstract Liquid–liquid equilibrium data have been determined for 1-butyl-pyridinium tetrafluoroborate([Bpy]BF4) + ammonium Citrate ((NH4)3C6H5O7)/Trisodium Citrate (Na3C6H5O7)/sodium succinate (Na2C4H4O4)/sodium acetate(CH3COONa) aqueous two-phase systems at T = 303.15 K, respectively. The effective excluded volume (EEV) values obtained from the binodal model for these four systems were determined, which indicates that the salting-out abilities of the four salts follow the order: Na3C6H5O7 > (NH4)3C6H5O7, Na3C6H5O7 > Na2C4H4O4 > CH3COONa. Then the binodal data were modeled by Merchuk and another two parameter equations. The Othmer–Tobias, Bancroft, two-parameter and Setschenow-type equations were used for the correlation of the tie-line data. Both the correlations of binodal data and tie-line data show good agreement for the investigated systems.
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phase behaviour for aqueous two phase systems containing the ionic liquid 1 butylpyridinium tetrafluoroborate 1 butyl 4 methylpyridinium tetrafluoroborate and organic salts sodium tartrate ammonium Citrate Trisodium Citrate at different temperatures
The Journal of Chemical Thermodynamics, 2013Co-Authors: Yuliang Li, Mengshi Zhang, Hang SuAbstract:Abstract The binodal curves of 1-butylpyridinium tetrafluoroborate + sodium tartrate at T = (298.15, 308.15 and 328.15) K and 1-butyl-4-methylpyridinium tetrafluoroborate + sodium tartrate/ammonium Citrate/Trisodium Citrate at T = 298.15 K were experimentally determined. Three empirical equations were used to correlate the binodal data. The tie-line data were successfully correlated using the Othmer–Tobias and Bancroft and two-parameter equations. Factors affecting the binodal curves, such as temperature and the nature of the ionic liquids, were also studied. The two-phase area expanded with a decrease in temperature, whereas the absolute value of the slope of the ties slightly decreased with an increase in temperature. With an increase in the alkyl chain length of the ionic liquids (ILs) in the investigated systems, the binodal curves shifted closer to the origin. Finally, the effective excluded volume (EEV) values obtained from the binodal model were determined, and the salting-out ability decreased in the following order: Na3C6H5O7 > Na2C4H4O6 > (NH4)3C6H5O7.
Cheng Shen - One of the best experts on this subject based on the ideXlab platform.
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liquid liquid equilibria of ionic liquid 1 butyl pyridinium tetrafluoroborate and ammonium Citrate Trisodium Citrate sodium succinate sodium acetate aqueous two phase systems at 303 15 k experiment and correlation
Journal of Molecular Liquids, 2014Co-Authors: Yuliang Li, Mengshi Zhang, Hang Su, Cheng ShenAbstract:Abstract Liquid–liquid equilibrium data have been determined for 1-butyl-pyridinium tetrafluoroborate([Bpy]BF4) + ammonium Citrate ((NH4)3C6H5O7)/Trisodium Citrate (Na3C6H5O7)/sodium succinate (Na2C4H4O4)/sodium acetate(CH3COONa) aqueous two-phase systems at T = 303.15 K, respectively. The effective excluded volume (EEV) values obtained from the binodal model for these four systems were determined, which indicates that the salting-out abilities of the four salts follow the order: Na3C6H5O7 > (NH4)3C6H5O7, Na3C6H5O7 > Na2C4H4O4 > CH3COONa. Then the binodal data were modeled by Merchuk and another two parameter equations. The Othmer–Tobias, Bancroft, two-parameter and Setschenow-type equations were used for the correlation of the tie-line data. Both the correlations of binodal data and tie-line data show good agreement for the investigated systems.
Eugene Oh - One of the best experts on this subject based on the ideXlab platform.
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Precursor Effects of Citric Acid and Citrates on ZnO Crystal Formation
Langmuir, 2009Co-Authors: Ji-wook Jang, Seung-ho Jung, Eugene OhAbstract:We have studied the precursor effects of citric acid and various Citrates—including triethyl Citrate, tripotassium Citrate, Trisodium Citrate and triammonium Citrate—on the formation of ZnO crystals in alkaline solution. These Citrate-related chemicals could be divided into three groups (group A, triethyl Citrate; group B, tripotassium Citrate and Trisodium Citrate; and group C, citric acid and triammonium Citrate) based on their activity for modifying the ZnO growth direction and solution pH dependency on their concentration. We could obtain ZnO structures with various distinct morphologies by simply changing the concentration of citric acid or Citrate additive dissolved in the alkaline reaction solution. On the basis of the results, we propose the growth mechanisms underlying the formation of the various ZnO structures in the absence and presence of citric acid or Citrate additives.