Properties of non-aqueous electrolyte solutions in the microwave and far infrared region

Themicrowave properties of electrolyte solutions in non—aqueoussolvents consist mainly in an excess dielectric polarization and absorptionwhich is interpreted in terms of ionic processes. Some information aboutsolvatation can also be derived from these properties. In the far infraredregion, tetraalkylaminonium salts exhibit an absorption which can yieldinformation about the interionic potential. FIR spectra of alkali metalsalts have also be obtained ; they show the presence of an absorption whichis not the well known cation band.