Interaction Studies in Urea-Phenol and Urea-Resorcinol Eutectics

Abstract

The phase interaction studies of urea-phenol (U-P) and urearesorcinol

(U-R) were carried out as a function of their per cent

composition in their proportionately prepared solutions. With reference

to time (t = 0), a thermo-constancy (ΔT = 0) condition of

stabilizing interactions for a fixed composition of urea-phenol and

urea-resorcinol solutions were observed, thermally constant

temperature values determined from cooling statistics of U-P and

U-R solutions were plotted against their individual per cent compositions.

From these phase diagrams eutectically thermodynamic

values were derived and the results were explained in terms of

eutectic coordinates.