JXH-9 is a potassium cation form of zeolite A molecular sieve. Agglomerated with a clay binder and treated by a special technique of surface modification, As a result of higher-temperature calcinations and newer granular formation process compared with JXH-7, JXH-9 is completely inert to any refrigerants and is particularly useful to the treatment of circulating refrigerant by adsorbing water as a means of avoiding freeze-ups and corrosion.