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Journal of Thermal Analysis and Calorimetry - Colchicine (Col), a naturally occurring alkaloid, has been used as an anti-inflammatory, anti-fibrotic, and anti-tumor drug. The present study reports...  相似文献   
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The Bertrand, Acree, and Burchfield (BAB) method has been employed to predict the relative permittivity of the ternary system: N,N-dimethylformamide-2-methoxyethanol-1,2-dimethoxyethane at seven temperatures from –10 to +20°C using reported relative permittivities for the three constituents' binary systems: N,N-dimethylformamide-2-methoxyethanol, 2-methoxyethanol-1, 2-dimethoxyethane, N,N-dimethylformamide-l, 2-dimethoxyethane. The agreement between the predicted and the experimental values is 99 ± 1%.  相似文献   
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Density (ρ) and speed of sound (u) in 2 M aqueous NaCl and 2 M NaNO3 solutions of amino acids: L-phenylalanine, L-leucine, L-glutamic acid, and L-proline have been measured for several molal concentrations of amino acids at different temperatures. The ρ and u data have been used to calculate the values of isothermal compressibility and internal pressure at different temperatures. The trends of variations of κ T and P i with an increase in molal concentration of amino acid and temperature have been discussed in terms of solute-solvent and solute-solute interactions in the systems.  相似文献   
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Densities of L-serine, L-isoleucine, L-glutamine in 1.5 mol kg?1 aqueous NaCl, and NaNO3 solutions have been measured for several molal concentrations of amino acids at temperatures from 298.15 to 323.15 K. The partial molar volumes (? v 0 ) of L-serine, L-isoleucine, and L-glutamine in 1.5 mol kg?1 aqueous NaCl/NaNO3 solutions have been computed using density data. The transfer partial molar volumes (Δtr? v 0 ) of L-serine, L-isoleucine, and L-glutamine from water to 1.5 mol kg?1 aqueous NaCl/1.5 mol kg?1 aqueous NaNO3 solutions have been determined at 298.15 K. The trends of variation of ? v 0 and Δtr? v 0 with change in temperature have been discussed in terms of ion-ion, ion-hydrophilic, and ion-hydrophobic interactions operative in solutions.  相似文献   
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