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zeolite |
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zeoliteAny member of a family of hydrated aluminosilicate minerals that have a framework structure enclosing interconnected cavities occupied by large metal cations (positively charged ions)—generally sodium, potassium, magnesium, calcium, and barium—and water molecules. The ease of movement of ions and water within the framework allows reversible dehydration and cation exchange, properties that are exploited in water softeners and molecular sieves for pollution control, among other uses. zeolite [′zēยทə‚līt] (mineralogy) A group of white or colorless, sometimes red or yellow, hydrous tectosilicate minerals characterized by an aluminosilicate tetrahedral framework, ion-exchangeable large cations, and loosely held water molecules permitting reversible dehydration. Any mineral of the zeolite group, such as analcime, chabazite, natrolite, and stilbite. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| To confirm that the Fenton chemistry is solely due to surface-bound zeolitic iron rather than the bulk, measurement of the MSA production was done on iron-zeolite that was treated with Dab-4 polymer. The natural zeolitic minerals, composed of aluminum and silicon, are a billion-dollar-a-year industry. Crystallographic studies of four zeolitic materials using neutron powder diffraction data are presented. |
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