Heterogeneity and viscosity decoupling in (acetamide + electrolyte) molten mixtures: A model simulation study

► Model simulations have been performed for (acetamide + salt) melts at 318 K. ► Simulations reflect large values for non-Gaussian parameter for all particles. ► Strong deviation from Gaussian distribution of the van Hove function observed. ► Simulated diffusion coefficients suggest partial decoupling from melt viscosity. ► Dynamic heterogeneity is found to be responsible for the observed decoupling.