The pore size for 5A molucular sieve is about 5A.It can absorb the molecular of which the diameter is less than than the pore size of molecular sieve.  Formula:3/4CaO.1/4Na2O.Al2O3.2SiO2.9/2H2O Composition: 0.80 CaO : 0.20 Na2O : 1 Al2O3: 2.0 ± 0.1 SiO2: x H2O   Performance Unit Technical Target Shape 　 Piece Sphere Diameter mm 1.5-1.7 3.0-3.3 1.7-2.5 3.0-5.0 Quality Ratio % ≥98 ≥98 ≥96 ≥96 Bulk Density g/ml ≥0.60 ≥0.60 ≥0.60 ≥0.60 Abrasion Loss % ≤0.20 ≤0.25 ≤0.20 ≤0.25 Compression Strength N ≥30/cm ≥45/cm ≥30/p ≥60/p Static Water Adsorption % ≥21.5 ≥21.5 ≥21.5 ≥21.5 N-Hexane Adsorption % ≥14 ≥14 ≥14 ≥14 Packing water % ≤1.5 ≤1.5 ≤1.5 ≤1.5 Application: Separation of normal paraffin’s from branched-chain and cyclic hydrocarbons; removal of H2S, CO2 and mercaptans from natural gas. Molecules adsorbed include nC4H10, nC4H9OH, C3H8 to C22H46, and dichlorodifluoro-methane (Freon 12®). l         Packing: 30kg white carton box, inside alumina foil bag airtight. Other packing is available upon your request.