... ). Galaxychem type 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude ... adsorb, in sequence of adsorption rate, argon, krypton, xenon, ammonia, carbon monoxide, C2H4, C2H2, CH3OH, C2H5OH, CH3CN2, CS2, CH3CL, CH3Br, and ... 450 at maximum.Package:25kg carton box. Inner package, vacuumized with aluminum foil. 55 gallon iron drum. As requirement of ...