The excess molar volume V-E viscosity deviation Delta eta, excess viscosity Delta ln eta and excess Gibbs energy of activation Delta G * E of viscous flow have been investigated from the density rho and viscosity eta measurements of seven binary mixtures of propylamine with ethanol, propanol, butanol, pentanol, heptanol, octanol and decanol over the entire range of mole fractions at 303.15 and 313.15 K. The results were fitted to variable degree of polynomials. The viscosity data have been correlated with the equations of Kendall and Monroe, Grunberg and Nissan, Hind, McLaughlin and Ubbelohde, Tamura and Kurata, Katti and Chaudhri, McAllister, Heric and Brewer, and of Auslaender. The systems studied, exhibit very strong cross association due to strong H-bonding between -OH and -NH2 groups. As a consequence of this strong intermolecular association, all seven systems have very large negative VE.