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International Letters of Chemistry, Physics and Astronomy
2014 Vol. 5 124--133
EN The wide spread use of 1,3,4-oxadiazoles as a scaffold in medicinal chemistry establishes this moiety as an important bioactive class of heterocycles. In the present study ultrasonic velocity (u), density (ρ) and viscosity (η) have been measured at frequency 2 MHz in the binary mixtures of 1,3,4-oxa[...]
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International Letters of Chemistry, Physics and Astronomy
EN The speed of sound and density in binary liquid mixture of diethyl carbonate + benzonitrile, + benzaldehyde have been determined at temperatures 298.15, 308.15 and 318.15 K over the whole composition range. The data have been utilized to estimate the excess adiabatic compressibility (βE),[...]
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Molecular and Quantum Acoustics
2003 Vol. 24 261-270
EN The excess values of the molar adiabatic compressibility as well as adiabatic compressibility coefficient were estimated for binariy mixtires of 1,2-ethanediol+1-pentanol at 298.15K. Also deviations of the ultrasonic speed from the chosen additivity rules were determined. Both the excess quantities [...]
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Molecular and Quantum Acoustics
2004 Vol. 25 291-296
EN The excess values of the molar adiabatic compressibility as well as adiabatic compressibility coefficeint were estimated for binary mixtures of 1,2-ethanediol+1-pentanol at the temperatures (293.15, 303.15, 308.15 and 313.15) K. Alsko deviations of the ultrasonic speed from the chosen additivity rul[...]
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Molecular and Quantum Acoustics
2002 Vol. 23 463-472
EN The excess values of the molar volume and molar adiabatic compressibility as well as adiabatic compressibility coefficient were estimated for binariey mixtures of cyclohexanol + glycerol at 298.15K. Also deviations of the ultrasonic speed from the chosen additivity rules were determined. Both the ex[...]
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Archives of Thermodynamics
EN Conditions describing the behaviour of the kink of the isobars at the dew line in v-x-phase diagrams of binary mixtures are proved using the second low. These conditions are tested using a generalized Bender equation of state with mixture rules of Tsai and Shuy. The complete set of formulas of such [...]
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Inżynieria i Aparatura Chemiczna
2006 Nr 5s 55-58
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Polimery
PL W artykule przedstawiono wyniki badań procesu separacji elektrostatycznej mieszanin dwuskładnikowych zawierających polimery biodegradowalne {polilaktyd (PLA), polikaprolakton (PCL) lub poli(3-hydroksymaślan-co-4-hydroksymaślan) [P(3,4HB)]} i polimery powszechnego użytku [poli(chlorek winylu) (PVC) l[...]
EN There are presented results of investigation of electrostatic separation of binary mixtures containing a biodegradable polymer {polylactide (PLA), polycaprolactone (PCL), or poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3,4HB)]} and a commonly used polymer [poly(vinyl chloride) (PVC) or poly(ethyl[...]
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Bulletin of the Polish Academy of Sciences. Chemistry
EN Detailed studies of the hydrogen-bonded complexes of coumarin 153 (C153) have been carried out. It has been shown that nonlinear shifts of the steady-state absorption and fluorescence spectra taken in toluene-methanol solvent mixtures are caused by the formation of hydrogen bonded complexes between [...]
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