A NEW METHOD FOR PREDICTING VISCOSITY OF PURE ORGANIC LIQUIDS

A new semi-theoretical method based on Enskog's hard sphere theory for dense fluids and the principle of corresponding stales is presented f or predicting viscosity of pure organic liquids. The viscosities of 75 organic liquids - 37 acyclic and 38 cyclic hydrocarbons - were calcul ated using this method which requires critical properties and normal b oiling point as input data. The predictions were compared with empiric al data and other prediction methods. Highly satisfactory results were obtained over a wide range of temperatures (0.45 < T-r < 0.80).