Dohntec Molecular Sieve 13X is the sodium form of the type X crystal and has an aperture than the type A crystals. It absorbs any molecules less than 10A, mainly used as catalyst carrier, co-absorption of CO2 and H2O, co-absorption of H2O and H2S. It is used as desiccants for medical and air compressor. Typical Chemical Formula: Na2O. Al2O3. 2.5 SiO2 . n H2O Typical Application Removal of CO2 and moisture from air (air pre-purification) and other gases. Dehydration and desulfuration of natural gas, liquid petrol gas and liquid alkane. Deep drying for common gas. Size 13X - Zeolites are available in beads of 1-2 mm, (10x18 mesh) 2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and in pellet 1.6", 3.2". Packaging 25kgs or 30kgs export carton box, inside alumina foil bag airtight Or 55 gallon iron drum, inside airtight sack Attention Do not unpack the goods until ready for use, avoid prolonged exposure to air. Should be packed as rapidly as possible when filling.