Bead type is widely used, such as use as catalyst carrier, to dry and absorb inflammable acetylene and carbon dioxide to prevent the machine from freezing and blocking in gas separating field. As it is water-proof, it is usually used as guard column to dry the gas before the gas flows in silica gel absorber, therefore the narrow pore silica gel will not split because of the high water content gas already been dried by FNG silica gel.
Granular type FNG can be used to refine the water. It can be recycled after being washed and dried. It can be used in aquarium; it can remove the fishy smell and the nitrite in the water.
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