Abstract
Heavy Kaolin is a native hydrated aluminium silicate which is freed from most of impurities by elutriation and dried. It does not contain any dispersing agent. Heavy kaolin used as Pharmaceutical aid, adsorbent in many Pharmaceutical preparations, in poisoning to adsorb toxin and its adsorption property has been checked in methylene blue solution in which heavy kaolin can adsorb color of methylene blue on its surface.
