Dielectric Studies of Dilute Solutions of Binary Mixtures of N,N-Dimethylformamide and 1-Hexanol in the Non-Polar Solvent Mesitylene

Abstract

The dielectric loss in the frequency range 200 MHz-10 GHz have been measured in dilute solutions of mesitylene for three binary mixtures of ( = 0.25,0.50 and 0.75 MF of N,N-dimethylformamide (DMFA) in 1 -hexanol. Similar measurements have also been carried out for dilute solutions of 1 -hexanol [ = 0 and DMFA ( = 1 in mesitylene. The variation of static permittivity E, and dielectric loss 6'' of DMFA-Mesitylene systems as a funtion of ( indicates a solute-solute type of molecular association between both components through a strong hydrogen bonding. The molecular association between DMFA and 1-hexanol is maximum around 1:l ratio (i.e. C = 0.50).