Absorpcja ultradźwięków w binarnych mieszaninach 1-butanol + 1,3-butanodiol w temperaturze 298.15 k

• Autorzy: Zorębski, E. , Zorębski, M.

Warianty tytułu

EN

Ultrasonic absorption in binary mixtures of 1-butanol + 1,3-butanediol at temperature 298.15 k

• Języki publikacji: PL

Abstrakty

EN

The absorption of ultrasound in binary mixtures of l-butanol with 1,3-butanedioI andin the pure components was measured at 298.15 K. The both components , i.e. l-butanol (GC>99.5%, H2O < 0.1%, Merck, RFN) and 1,3-butanediol (GC>99%, H2O < 0.2%, Merck-Schuchardt, RFN) were used without further purification. Only the water content was checked by the Karl Fischer dead-point method and found to be no more than 0.06% vol. and 0.01% j vol., respectively. The mixtures were prepared by weighing. The absorption of ultrasound was measured within the frequency range 10-80 MHz using a pulse transmission method. The measuring set designed and constructed at our laboratory f was used. The accuracy of the measurements was estimated to be š5%. For both pure components and all investigated mixtures the quotient alfa/f2 is independent of frequency (within the investigated frequency range); the relaxation times must be | consequently distinctly smaller than (2 . pi . 80 MHz)'1 = 2-10-9 s. The concentration dependence of the mean ultrasonic absorption alfa/f2 is monotonie, alfa/2l increased with increasing concentration of 1,3-butanediol.

• Czasopismo: Molecular and Quantum Acoustics
• Rocznik: 1998
• Tom: Vol. 19
• Strony: 297-300
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Zorębski, E.

autor

Zorębski, M.

• Instytut Chemii, Uniwersytet Śląski, Szkolna 9, 40-006 Katowice,