5A Molecular Sieve is wildly used in dehydration ofethylene,propylene and ethanol, it is white, fine powder. Product Description5A Zeolite molecular sieve used in Air-purification & PSA ... tons per year .with total amount of 150,000 tons. 5A Molecular Sieve is wildly used in dehydration of ethylene,propylene and ethanol ... .5Cl %<0.2CaO%>13.5CaO/Al2O3%>70Bulk Density 0.6 5A Zeolite-molecular sieve