HQ-4A molecular sieve is the sodium form of the TYPE A crystal structure. 4A molecular sieve has an effective pore opening of about 4 Angstroms(0.4nm).
It is used for Static Dehydration in airtight gas or liquid systems, as static desiccant in household refrigeration systems, pharmaceutical packing, automotive air conditioning, electronic element and unstable materials, or as dehydrating agent in the paint and plastics systems. It can also be used for drying saturated hydrocarbon materials, and can adsorb methanol, ethanol, hydrogen sulfide, carbon dioxide, etc.
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