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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/5616

Title: Observations on growth of NaCl crystals out of the surface of sodalite [Na8(Al6Si6O24)Cl2]
Authors: Hassib, Adil M.
Annersten, Hans
Keywords: Sodalite
Nacl
Si-AI gel
Photochromic
Cathodochromic
Issue Date: 1994
Publisher: International Union of Crystallography
Citation: Journal of Applied Crystallography: 27(5); 710-715
Abstract: When the surface of sodalite [Nas(Si6AI606)CI2] crystals was treated with an etching solution, growth of NaCI crystals could be observed. The etchant used is a dilute nitric acid solution. The acid attacks the surface and breaks it down into an Si-AI gel in which the crystals grow rapidly. Optical photography and electron-microprobe images show crystals with steplike patterns and hollow depressions at the centres of crystal faces. Preferential growth and aggregation of crystallites at grain boundaries is distinctly observed.
URI: http://dx.doi.org/10.1107/S0021889894001172
ISSN: 0021-8898
Appears in Collections:College of Science

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