Low temperature orthorhombic-monoclinic
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J.M. Chezeau; L. Delmotte; T. Hasebe; N.B. Chanh
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Article
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1991
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Elsevier Science
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English
โ 278 KB
On cooling, an as-synthesized MFI siliceous zeolite presents a transition from orthorhombic to monoclinic form, at -175 K. This phase transition is evidenced by several techniques and is similar to that already known in calcined MFI zeolites.