Connecting the normal pressure equilibria of the two-component system CCl(CH3)3+CBrCl3 to the pressure–temperature phase diagrams of pure components

Tamarit, J. Ll.; Céolin, R.; Pardo, Luis Carlos; Negrier, Ph.; Mondieig, D.

doi:10.1016/j.chemphys.2009.01.009

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…The Redlich–Kister (RK) equation is commonly employed to represent the thermodynamic properties such as heat of mixing H m of the nonideal solution. , The interaction parameters in the RK equation are subject to the temperature. Kaptay developed a representation to evaluate the effect of temperature on the interaction parameters in the RK equation.…”

Section: Methodsmentioning

confidence: 99%

Osmolality and Unfrozen Water Content of Aqueous Solution of Dimethyl Sulfoxide

Weng

Zuo

et al. 2011

J. Chem. Eng. Data

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Dimethyl sulfoxide is one of the most popular cryoprotectants in cryobiology. It is crucial for the successful cryopreservation to quantitatively analyze the cryoprotective properties of dimethyl sulfoxide. In this study, the osmolality and the unfrozen water content of the aqueous solution of dimethyl sulfoxide are determined using a Perkin-Elmer Diamond DSC. For precisely calculating the unfrozen water content, this study takes into consideration the effect of dilution on the enthalpy of fusion in the solution which is a commonly neglected factor. The osmotic virial representation and the quantitative relationships between the unfrozen water content and the solution composition are reported. The experimental results show that the aqueous dimethyl sulfoxide solution has a greatly depressed freezing point and a large osmolality. Moreover, the water-blocking ability of dimethyl sulfoxide weakens when the solution is more concentrated. The results in this study will enlarge the database of physical and chemical properties of dimethyl sulfoxide and reinforce our understanding of the cryoprotective mechanisms of dimethyl sulfoxide in aqueous solutions. ' METHODOLOGYMaterials. DMSO with the initial mass-fraction purity of 99.5 % is used in our experiment. It is purchased from Kermel Chemical Reagent Co. Ltd. (Tianjin, P.R.China) without further purification. DMSO as the solute and the reverse osmosis and deionized (RO/DI) water as the solvent are mixed into solutions

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Section: Methodsmentioning

confidence: 99%

Osmolality and Unfrozen Water Content of Aqueous Solution of Dimethyl Sulfoxide

Weng

Zuo

et al. 2011

J. Chem. Eng. Data

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“…Even more, the field of phase diagrams involving at least two chemical species, the temperature-composition (T-X) phase diagrams, is generally decoupled from the field of the polymorphic behavior at high pressure. Nevertheless, thermodynamics imposes an univocal relation between the controlled pressure and temperature conditions at which a polymorph should exist and the physical properties derived at normal pressure and, hence, the properties that can be extracted from a temperature-composition phase diagram [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The other way around also holds, properties derived for stable or metastable phases emerging in the temperature-composition phase diagrams can provide information about the nature of high-pressure phases even when they do not exist as stable phases at normal pressure.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the two-component system 1-Br-adamantane + 1-Cl-adamantane and the high-pressure properties of the pure components

Levit

Lloveras

Aznar

et al. 2018

Fluid Phase Equilibria

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The temperature-composition phase diagram of the two-component system 1-Bradamantane and 1-Cl-adamantane has been determined by means of thermal analysis techniques and X-ray powder diffraction from the low-temperature phase to the liquid state. The crossed isopolymorphism formalism has been applied to the two-component system to infer the normal pressure properties of the orthorhombic metastable phase of 1-Cladamantane at normal pressure. The experimental pressure-temperature phase diagrams for the involved compounds are related to the two-phase equilibria determined at normal pressure and inferences about the monotropic behavior of the aforementioned orthorhombic phase are discussed.2

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