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Randi D Richey - One of the best experts on this subject based on the ideXlab platform.
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a Chemical Test of critical point isomorphism reactive dissolution of ionic solids in isobutyric acid water near the consolute point
Journal of Physical Chemistry B, 2015Co-Authors: James K Baird, Baichuan Hu, Jonathan D Baker, Joshua R Lang, Alison K Sides, Karen E Joyce, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straigh...
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A Chemical Test of Critical Point Isomorphism: Reactive Dissolution of Ionic Solids in Isobutyric Acid + Water near the Consolute Point
2015Co-Authors: James K Baird, Jonathan D Baker, Alison K Sides, Karen E Joyce, Joshua R. Lang, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straight line for all temperatures including the critical region. The phase rule indicates that two mole fractions can be fixed. With this restriction, the data are in exact agreement with the principle of critical point isomorphism
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a Chemical Test of the principle of critical point universality the solubility of nickel ii oxide in isobutyric acid water near the consolute point
Journal of Chemical Physics, 2011Co-Authors: Baichuan Hu, James K Baird, Randi D Richey, Ramana G. ReddyAbstract:A mixture of isobutyric acid + water has an upper consolute point at 38.8 mass % isobutyric acid and temperature near 26 °C. Nickel (II) oxide dissolves in this mixture by reacting with the acid to produce water and nickel isobutyrate. The solubility of nickel (II) oxide in isobutyric acid + water has been measured as a function of temperature at compositions, 25, 38.8, and 60 mass % isobutyric acid. For values of the temperature, T, which were at least 2 K in excess of the liquid–liquid phase transition temperature, the measured values of the solubility, s, lie on a straight line when plotted in van't Hoff form with ln s versus 1/T. The slope, (∂ln s/∂(1/T)), of the line is negative indicating that the dissolution reaction is endothermic. When the temperature was within 2 K of the phase transition temperature, however, (∂ln s/∂(1/T)) diverged toward negative infinity. The principle of critical point universality predicts that when excess solid nickel (II) oxide is in dissolution equilibrium with liquid i...
James K Baird - One of the best experts on this subject based on the ideXlab platform.
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a Chemical Test of critical point isomorphism reactive dissolution of ionic solids in isobutyric acid water near the consolute point
Journal of Physical Chemistry B, 2015Co-Authors: James K Baird, Baichuan Hu, Jonathan D Baker, Joshua R Lang, Alison K Sides, Karen E Joyce, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straigh...
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A Chemical Test of Critical Point Isomorphism: Reactive Dissolution of Ionic Solids in Isobutyric Acid + Water near the Consolute Point
2015Co-Authors: James K Baird, Jonathan D Baker, Alison K Sides, Karen E Joyce, Joshua R. Lang, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straight line for all temperatures including the critical region. The phase rule indicates that two mole fractions can be fixed. With this restriction, the data are in exact agreement with the principle of critical point isomorphism
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a Chemical Test of the principle of critical point universality the solubility of nickel ii oxide in isobutyric acid water near the consolute point
Journal of Chemical Physics, 2011Co-Authors: Baichuan Hu, James K Baird, Randi D Richey, Ramana G. ReddyAbstract:A mixture of isobutyric acid + water has an upper consolute point at 38.8 mass % isobutyric acid and temperature near 26 °C. Nickel (II) oxide dissolves in this mixture by reacting with the acid to produce water and nickel isobutyrate. The solubility of nickel (II) oxide in isobutyric acid + water has been measured as a function of temperature at compositions, 25, 38.8, and 60 mass % isobutyric acid. For values of the temperature, T, which were at least 2 K in excess of the liquid–liquid phase transition temperature, the measured values of the solubility, s, lie on a straight line when plotted in van't Hoff form with ln s versus 1/T. The slope, (∂ln s/∂(1/T)), of the line is negative indicating that the dissolution reaction is endothermic. When the temperature was within 2 K of the phase transition temperature, however, (∂ln s/∂(1/T)) diverged toward negative infinity. The principle of critical point universality predicts that when excess solid nickel (II) oxide is in dissolution equilibrium with liquid i...
Baichuan Hu - One of the best experts on this subject based on the ideXlab platform.
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a Chemical Test of critical point isomorphism reactive dissolution of ionic solids in isobutyric acid water near the consolute point
Journal of Physical Chemistry B, 2015Co-Authors: James K Baird, Baichuan Hu, Jonathan D Baker, Joshua R Lang, Alison K Sides, Karen E Joyce, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straigh...
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a Chemical Test of the principle of critical point universality the solubility of nickel ii oxide in isobutyric acid water near the consolute point
Journal of Chemical Physics, 2011Co-Authors: Baichuan Hu, James K Baird, Randi D Richey, Ramana G. ReddyAbstract:A mixture of isobutyric acid + water has an upper consolute point at 38.8 mass % isobutyric acid and temperature near 26 °C. Nickel (II) oxide dissolves in this mixture by reacting with the acid to produce water and nickel isobutyrate. The solubility of nickel (II) oxide in isobutyric acid + water has been measured as a function of temperature at compositions, 25, 38.8, and 60 mass % isobutyric acid. For values of the temperature, T, which were at least 2 K in excess of the liquid–liquid phase transition temperature, the measured values of the solubility, s, lie on a straight line when plotted in van't Hoff form with ln s versus 1/T. The slope, (∂ln s/∂(1/T)), of the line is negative indicating that the dissolution reaction is endothermic. When the temperature was within 2 K of the phase transition temperature, however, (∂ln s/∂(1/T)) diverged toward negative infinity. The principle of critical point universality predicts that when excess solid nickel (II) oxide is in dissolution equilibrium with liquid i...
Ramana G. Reddy - One of the best experts on this subject based on the ideXlab platform.
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a Chemical Test of the principle of critical point universality the solubility of nickel ii oxide in isobutyric acid water near the consolute point
Journal of Chemical Physics, 2011Co-Authors: Baichuan Hu, James K Baird, Randi D Richey, Ramana G. ReddyAbstract:A mixture of isobutyric acid + water has an upper consolute point at 38.8 mass % isobutyric acid and temperature near 26 °C. Nickel (II) oxide dissolves in this mixture by reacting with the acid to produce water and nickel isobutyrate. The solubility of nickel (II) oxide in isobutyric acid + water has been measured as a function of temperature at compositions, 25, 38.8, and 60 mass % isobutyric acid. For values of the temperature, T, which were at least 2 K in excess of the liquid–liquid phase transition temperature, the measured values of the solubility, s, lie on a straight line when plotted in van't Hoff form with ln s versus 1/T. The slope, (∂ln s/∂(1/T)), of the line is negative indicating that the dissolution reaction is endothermic. When the temperature was within 2 K of the phase transition temperature, however, (∂ln s/∂(1/T)) diverged toward negative infinity. The principle of critical point universality predicts that when excess solid nickel (II) oxide is in dissolution equilibrium with liquid i...
Karen E Joyce - One of the best experts on this subject based on the ideXlab platform.
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a Chemical Test of critical point isomorphism reactive dissolution of ionic solids in isobutyric acid water near the consolute point
Journal of Physical Chemistry B, 2015Co-Authors: James K Baird, Baichuan Hu, Jonathan D Baker, Joshua R Lang, Alison K Sides, Karen E Joyce, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straigh...
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A Chemical Test of Critical Point Isomorphism: Reactive Dissolution of Ionic Solids in Isobutyric Acid + Water near the Consolute Point
2015Co-Authors: James K Baird, Jonathan D Baker, Alison K Sides, Karen E Joyce, Joshua R. Lang, Randi D RicheyAbstract:Binary liquid mixtures having a consolute point can be used as solvents for Chemical reactions. When excess cerium(IV) oxide is brought into equilibrium with a mixture of isobutyric acid + water, and the concentration of cerium in the liquid phase is plotted in van’t Hoff form, a straight line results for temperatures sufficiently in excess of the critical solution temperature. Within 1 K of the critical temperature, however, the concentration becomes substantially suppressed, and the van’t Hoff slope diverges toward negative infinity. According to the phase rule, one mole fraction can be fixed. Given this restriction, the temperature behavior of the data is in exact agreement with the predictions of both the principle of critical point isomorphism and the Gibbs–Helmholtz equation. In addition, we have determined the concentration of lead in the liquid phase when crystalline lead(II) sulfate reacts with potassium iodide in isobutyric acid + water. When plotted in van’t Hoff form, the data lie on a straight line for all temperatures including the critical region. The phase rule indicates that two mole fractions can be fixed. With this restriction, the data are in exact agreement with the principle of critical point isomorphism