: Paléoclimatologie: zeolite

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zeolite

Zeolite is a family of several microporous, crystalline aluminosilicate materials commonly used as commercial adsorbents and catalysts. Zeolites are white solids with ordinary handling properties, like many routine aluminosilicate minerals, e.g. feldspar. Zeolites with a Si/Al ratios higher than about 3 are classified as high-silica zeolites, which tend to be more hydrophobic. The H+ and Na+ can be replaced by diverse cations, because zeolites have ion exchange properties. The nature of the cations influences the porosity of zeolites. Zeolites have microporous structures with a typical diameter of 0.3–0.8 nm. Like most aluminosilicates, the framework is formed by linking of aluminum and silicon atoms by oxides. (Adapted from: https://en.wikipedia.org/wiki/Zeolite)

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