Solubility of Hydroxytyrosol in binary mixture of ethanol + water from (293.15 to 318.15) K: Measurement, correlation, dissolution thermodynamics and preferential solvation
Abdelkarim Aydi,Abdelkarim Aydi,Imen Dali,Kaouther Ghachem,Abdulaal Z. Al-Khazaal,Daniel Ricardo Delgado,Lioua Kolsi +6 more
TLDR
In this article, the behavior of the solubility of HXT in binary solvent mixtures (ethanol+water) as well as the thermodynamic proprieties were studied and the preferential solvation has been determined using the inverse Kirkwood-Buff integral theory.Abstract:
Hydroxytyrosol (HXT) (also known as 3,4-dihydroxyphenylethanol,) is a biophenol extracted from olive. HXT is known for its high antioxidant significance effect. In this work, we focused on the study of the behavior of the solubility of HXT in binary solvent mixtures (ethanol + water) as well as the thermodynamic proprieties. The solubility of HXT in water, ethanol and in binary solvent mixtures (ethanol + water) was measured at five different temperatures from (293.15 to 318.15) K. The enthalpy of fusion and the melting point of HXT were experimentally determined since they are essential for the study of the of solubility and crystallization process. Thermodynamic properties of dissolution of the HXT (Gibbs energy (ΔsolG°), molar enthalpy of dissolution (ΔsolH°), and molar entropy of dissolution (ΔsolS°)) are predicted using the van’t Hoff analysis, the Gibbs equation, and the measured solubilities data. The preferential solvation has been determined using the inverse Kirkwood–Buff integral (IKBI) theory.read more
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Beneficial effects of natural compounds on experimental liver ischemia-reperfusion injury.
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Increasing the Equilibrium Solubility of Meloxicam in Aqueous Media by Using Dimethyl Sulfoxide as a Cosolvent: Correlation, Dissolution Thermodynamics and Preferential Solvation
Darío A. Tinjacá,Fleming Martínez,Ovidio Almanza,María Á. Peña,Abolghasem Jouyban,William E. Acree +5 more
TL;DR: In this paper , the van't Hoff and Gibbs equations were employed to calculate the apparent standard thermodynamic quantities relative to dissolution and mixing processes, and the inverse Kirkwood-Buff integral method was employed for calculating the preferential solvation parameters of meloxicam by DMSO in the mixtures.
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Thermodynamic Analysis of the Solubility of Propylparaben in Acetonitrile–Water Cosolvent Mixtures
TL;DR: In this article , the solubility of propylparaben in acetonitrile + water cosolvent mixtures at nine temperatures by UV/Vis spectrophotometry was analyzed by differential scanning calorimetry to evaluate possible polymorphic changes.
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Solubility of ciprofloxacin in different solvents at several temperatures: Measurement, correlation, thermodynamics and Hansen solubility parameters
Nestor Enrique Cerquera,Claudia Patricia Ortiz,Rossember E. Cardenas-Torres,Daniel Ricardo Delgado,María Á. Peña,Fleming Martínez +5 more
References
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Book
CRC Handbook of Solubility Parameters and Other Cohesion Parameters, Second Edition
TL;DR: In this paper, the Hildebrand-Scatchard Equation has been extended to include the effect of temperature, concentration, and pressure on the mixture of the components of the mixture.
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The solvatochromic comparison method. I. The .beta.-scale of solvent hydrogen-bond acceptor (HBA) basicities
Mortimer J. Kamlet,R. W. Taft +1 more
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A method for estimating both the solubility parameters and molar volumes of liquids
TL;DR: In this paper, an indirect method of estimating the solubility parameter of high molecular weight polymers is proposed, which is based on group additive constants, but is believed to be superior to Small's method for two reasons: (1) the contribution of a much larger number of functional groups have been evaluated, and (2) the method requires only a knowledge of structural formula of the compound.
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The solvatochromic comparison method. 2. The .alpha.-scale of solvent hydrogen-bond donor (HBD) acidities
R. W. Taft,Mortimer J. Kamlet +1 more
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Enthalpy-entropy compensation phenomena in water solutions of proteins and small molecules: a ubiquitous property of water.
Rufus Lumry,Shyamala Rajender +1 more
TL;DR: It is tentatively concluded that the pattern is real, very common and a consequence of the properties of liquid water as a solvent regardless of the solutes and the solute processes studied, and that liquid water plays a direct role in many protein processes and may be a common participant in the physiological function of proteins.