Viscosity estimation (UNIMOD)

Hi,

I'm trying to predict the viscosity of a ternary mixture of water +
ethyl acetate + ethanol using the UNIMOD method, but I'm missing some
parameters.
I need the values for ni of those mixture components. Can anyone help
me out?
Thanks.
-- 
Paul J. Franklin(moderator - sci.chem.organic.synthesis) 
http://organicworldwide.net/sci.chem.organic.synthesis
Georgia State University <[EMAIL PROTECTED]>
Atlanta, GA