5A Molecular Sieve
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5A Molecular Sieve type has a pore size that is 5A. It cannot adsorb any molecules smaller than 5A. This molecular sieve is an alkali alumino silicate in the calcium form of Type A crystal structure. The basic application is separation of the normal and isomerous alkane, co-adsorption of carbon dioxide and moisture, along with pressure swing adsorption (PSA) for gases. The sequence rate of adsorption is C3-C14, C2H5CL, C2H5Br, CH3L, C2H5NH2, CH2CL2CH2Br2, CHF2CL, CHF3, CF4, (CH3)NH2, B2H6CF2CL2, CHFCL2, and CF3CL.
It is the most reliable desiccant for several applications including:
Normal paraffin separating process
Refining SF6 refrigerant for power (removing moisture and hydrocarbon)
Oxygen/hydrogen PSA (Pressure Swing Adsorption) process
Typical Formula: Ca4,5 [(Al02)12(SiO2)12] · nH2O