It was shown experimentally that the infrared spectra of melted and never-frozen distilled water differed at frequencies of 1640 and 2130 cm$^{-1}$. This is explained by the long relaxation of water molecules structures to an equilibrium state in melt water. It was suggested that near the frequency 2130 cm$^{-1}$ there was a bigger influence of dissolved gas relaxation on the value of the transmitted intensity of infrared radiation than near the 1640 cm$^{-1}$ line.
78.30.Cp Liquids
Faculty of Physics, Moscow State University, Moscow, 119991, Russia
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