Discriminating between correlations of experimental viscosity data for perfluorobutane using molecular simulation

As part of a long-term project aimed at examining the rheology of fluorinat ed compounds of industrial importance, we have in an initial study been exa mining the ability of different potential models to predict the viscosity o f perfluoroalkanes. Here we present a comparison of the viscosity of perflu orobutane predicted by molecular dynamics simulations using two different p otential models with two experimentally based correlations, one of which is used in the DIPPR database, We find that the simulation data enables us to discriminate between two sets of published correlations for the viscosity of perfluorobutane.