EXCESS VOLUMES OF 1-BUTANOL, 2-BUTANOL, 2-METHYLPROPAN-1-OL, AND 2-METHYLPROPAN-2-OL WITH XYLENES AT 308.15 K

The excess volumes V-E for 1-butanol or 2-butanol or 2-methylpropan-1- ol or 2-methylpropan-2-ol + o-xylene or m-xylene or p-xylene at 308.15 K have been measured over the whole range of composition, The V-E vs composition curves are skewed toward the low concentration of butanol. For systems containing 1-butanol curves are sigmoids and V-E values c hange sign in the 1-butanol(1) rich region x(1) > 0.8). For butanol xylene systems V-E values vary in the order 2-methylpropan-2-ol 1 2-bu tanol > 2-methylpropan-1-ol > 1-butanol.