Адсорбція сорбіту на поверхні високодисперсного кремнезему та метилкремнеземів

Adsorption of sorbitol on the surface of ultrafine silica and methylsilicas has been investigated. Obtained isotherms correspond to Frumkin equation. Dependence of sorbitol adsorption on ultrafine silica surface upon pH of solution was observed. The decrease of adsorption with increase of pH is caused by the increase of the surface negative charge. It has been found that xylitol and mannitol, unlike sorbitol, do not adsorb on ultrafine silica surface and an explanation of observed effect is presented.