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 systems were measured at 25 degrees C and mean apparent molar volumes of SUC+CYC (V-phi,V-m) in water in each composite mixture have been evaluated. Apparent molar volumes of SUC (V-phi,V-suc) have also been computed 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 complexes between SUC and CYC molecules with 1:2 and 1:1 stochiometries in composite mixtures of mole ratios 0.588 and 1.12 respectively.