HOST-GUEST INTERACTIONS .1. VOLUMES OF THE SUCROSE PLUS BETA-CYCLODEXTRIN PLUS WATER TERNARY-SYSTEMS AT 25-DEGREES-C

Densities of sucrose+beta-cyclodextrin+water (SUC+CYC+W) ternary syste ms were measured at 25 degrees C and mean apparent molar volumes of SU C+CYC (V-phi,V-m) in water in each composite mixture have been evaluat ed. Apparent molar volumes of SUC (V-phi,V-suc) have also been compute d from the volume data of each ternary composite mixture. Variation of V-phi,V-m and V-phi,V-suc with respect to the total molality m(t) of SUC+CYC and to that of SUC m(suc) show the formation of inclusion comp lexes between SUC and CYC molecules with 1:2 and 1:1 stochiometries in composite mixtures of mole ratios 0.588 and 1.12 respectively.