1-Butanol + hexylamine + n-heptane at temperature range (288.15-323.15 K): Experimental density data, excess molar volumes determination and modeling with cubic EOS Radovič‡, I.R.; Kijevčanin, M.L.; ń erbanovič‡, S.P.; Djordjevič‡, B.D.; Fluid Phase Equilibria 2010, 298, 117-130