ACOUSTIC SPECTROSCOPY OF BINARY SOLUTIONS NEAR THE CRITICAL TEMPERATURE OF STRATIFICATION

摘要

Experimental study of nitromethane-n-amyl alcohol and nitrobenzene-hexane binary solutions near the critical temperature of stratification have been carried out by acoustic spectroscopy in a wide frequency range (f = 5/2800 MHZ). On the basis of the obtained experimental data, the frequency and temperature dependences of the sound absorption coefficient were studied in the range of low (f = 5/110 MHz) and high (f = 10004/2800 MHZ) frequencies. The obtained results confirm the conclusions of the dynamic theory of critical phenomena.