Himedia Molecular sieve 4Å, Hi-LR

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Molecular sieves are crystalline metal aluminosilicates with a three-dimensional interconnecting network of silica and alumina tetrahedra. The natural water of hydration is removed by heating, producing uniform cavities that selectively adsorb molecules of a specific size.
This 4Å form with sodium ions has an effective pore opening of 4Å, thus excluding molecules with an effective diameter greater than 4Å.

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