Results 251 to 260 of about 1,454,218 (304)
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Journal of Physical Organic Chemistry, 1999
Solvent effects on the binary mixtures of amides with alcohols and water were investigated by means of Reichardt's ET(30) solvatochromic indicator. E parameters of binary solvent mixtures of formamide, N-methylformamide and N,N-dimethylformamide with water, methanol, propan-2-ol, 2-methylpropan-2-ol, formamide, N-methylformamide and N,N ...
Martí Rosés, Ivo Leito
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Solvent effects on the binary mixtures of amides with alcohols and water were investigated by means of Reichardt's ET(30) solvatochromic indicator. E parameters of binary solvent mixtures of formamide, N-methylformamide and N,N-dimethylformamide with water, methanol, propan-2-ol, 2-methylpropan-2-ol, formamide, N-methylformamide and N,N ...
Martí Rosés, Ivo Leito
exaly +2 more sources
Characterization of binary solvent mixtures: the water–acetonitrile mixture
Organic & Biomolecular Chemistry, 2003Binary mixtures of water and acetonitrile (W/AN) were characterized in the light of the pure solvent scales, using suitable probe/homomorph couples. Various thermodynamic (vapour pressure, softness parameter, excess molar Gibbs energy and enthalpy of mixing) properties, surface tension, viscosity, and spectroscopic (IR, Raman and NMR) properties of the
Javier, Catalán +2 more
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Screening of Binary Solvent Mixtures and Solvate Formation of Indomethacin
Chemical Engineering and Technology, 2011AbstractThe applicability of solubility parameters and solvent activity in the screening of binary solvent mixtures was studied. The solubility of indomethacin was measured in binary mixtures of dichloromethane, acetone, and ethyl acetate with methanol and ethanol. Solubility extremes in the mixed solvents were observed.
Haiyan Qu, M Louhi-Kultanen
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The interaction of patterned solutes in binary solvent mixtures
The Journal of Chemical Physics, 2006Mean solute-solute forces and solute-induced solvent structure are investigated for pairs of chemically patterned (patched) solutes in binary mixtures near demixing coexistence. The isotropic and anisotropic hypernetted-chain integral equation theories as well as a superposition approximation are solved and compared.
S D, Overduin, G N, Patey
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Solution Thermodynamics of Simvastatin in Pure Solvents and Binary Solvent Mixtures
Fluid Phase Equilibria, 2015Abstract The solubility data of simvastatin in five pure solvents and binary solvent mixtures of isobutyl acetate and n-heptane were experimentally determined by a gravimetrical method under atmospheric pressure. It was found that the solubility of simvastatin increases with temperature rising in all investigated solvents. In binary solvent mixtures,
Hongxun Hao, Qiuxiang Yin, Junbo Gong
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A unified understanding of the cononsolvency of polymers in binary solvent mixtures
Soft Matter, 2020The parameter region in the Δ χ − χ SC plane where cononsolvency will (the shaded area) and will not (the blank area) occur with ϕ P = 0.1.
Xiangyu Zhang, Jing Zong, Dong Meng
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Solubility of Deflazacort in Binary Solvent Mixtures
Journal of Chemical & Engineering Data, 2008Experimental solubility data were measured for deflazacort dissolved in binary n-hexane + acetone, n-hexane + ethyl acetate, n-hexane + ethanol, and n-hexane + 2-propanol solvent mixtures at 303.15 K and atmospheric pressure by laser monitoring technique.
Peng Wang +4 more
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Infrared study of 6-methylcoumarin in binary solvent mixtures
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2008The infrared absorption spectra of the carbonyl stretching vibrations of 6-methylcoumarin (6MC) have been investigated in CCl4/ROH mixtures (CCl4/C2H5OH, CCl4/n-C3H7OH, CCl4/i-C3H7OH, and CCl4/t-C5H11OH). Two types of carbonyl stretching vibration bands for 6MC are found with the change of the mole fraction of the aprotic solvent CCl4(X CCl4 in binary ...
Feiying, Zhang +3 more
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Behavior of a polymer chain immersed in a binary mixture of solvents
The Journal of Chemical Physics, 2007The behavior of a polymer chain immersed in a binary solvent mixture is investigated via a single-polymer simulation using an effective Hamiltonian, where the solvent effects are taken into account through a density-functional theory for polymer-solvent admixtures. The liquid-liquid phase separation of the binary solvent mixture is modeled as that of a
Tomonari, Sumi +2 more
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Investigation of Encapsulation and Solvatochromism of Fullerenes in Binary Solvent Mixtures
The Journal of Physical Chemistry B, 1999Fullerenes, when dissolved in certain binary solvent mixtures are found to exhibit strong solvatochromism and an unusual chemical inertness. From UV-vis optical absorption measurements, dynamic light scattering (DLS) size measurements and chemical tests on C- 60/pyridine/water mixtures, we suggest that the origin of these unusual effects is the ...
Mrzel, A +4 more
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