In this paper, the binary adsorption isotherms of acetone-n-hexane, to
luene-n-hexane, benzene-n-hexane and n-pentane-n-hexane on silylanizat
ion silica gel are presented. The adsorption isotherms for pure gas ar
e also obtained. It will be seen from the experimental results that th
e adsorption behavior of the vapor mixtures can be predicted from the
isotherms of pure components. The extent of predominant adsorption can
be predicted by the first layer adsorption heat of the individual pur
e components.