Abstract
Abstract The phase diagrams of binary systems of 4-aminoacetophenone (AAP) with each of benzoin (BN) and 4-nitrophenol (PNP) have been established by the thaw-melt method. This study shows the formation of eutectics. Accurate compositions of BN and PNP to form eutectic mixtures have been determined by the phase diagram study between BN–AAP and PNP–AAP in the entire range of compositions. The thermal properties of the eutectics, such as enthalpy of mixing, solid–liquid interfacial energy, entropy of fusion and excess thermodynamic functions were computed based on enthalpy of fusion values. The influence of undercooling on growth kinetics of pure components and their eutectics has been studied. The microstructural studies infer the influence of solid–liquid interfacial energy on the morphology of microstructures of eutectics.
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