Correlation Of NMR Spin-Lattice Relaxation and Dielectric Relaxation Times of Binary and Tertiary Mixtures of Alcohols

Abstract

Experimental measurements of NMR spin-lattice relaxation time T₁ of binary mixtures of Methanol and Propanol with ratios 1:1, 1:2, 2:1 and 1:3 and tertiary mixtures of Methanol, Propanol and Butanol with ratios 1:1:1, 1:1:2, 1:2:1 and 2:1:1 have been reported. The experimental values of the NMR spin-lattice relaxation times have been correlated with the calculated values of the T₁ obtained using various equations for calculating dielectric relaxation time(τ). For calculation of NMR spin-lattice relaxation time, the absolute viscosity of binary and tertiary mixtures of alcohols have been obtained by using an Ostwald Viscometer and correlation time τ_c has also been reported by using the Debye theory of polar liquids.