Density and speed of sound of poly (ethylene glycol) dimethyl ether 250 and 500 in 1-propanol mixtures at different temperatures
کد مقاله : 1221-PHYSCHEM20
نویسندگان:
سعید فرجی *
دانشجوی کارشناسی ارشد شیمی فیزیک/دانشگاه تبریز
چکیده مقاله:
In the present study, volumetric and compressibility properties of binary mixtures, 1- propanol + poly (ethylene glycol) dimethyl ether (PEGDME) were determined. Density and speed of sound data were measured to obtain excess molar volumes, isentropic compressibility deviation, and excess speed of sound for the investigated systems at T = ( 298.15 to 318.15) K . The calculated values for these deviations became more negative with increasing of temperature. Redlich – Kister and Ott et al. equations were used to correlate the above mentioned experimental data. The results are interpreted in terms of present solute-solvent interactions in the studied mixtures.
کلیدواژه ها:
"Poly(ethylene glycol) dimethyl ether"; "Density; Speed of Sound"; "Redlich-Kister Model"
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