New powder X-ray data for cancrinite (ideally Na8Si6Al6O24(CO3)2 . 2 H2O) are reported along with in-situ real-time thermal processes recorded using energy dispersive X-ray diffractometry (EDXD). A completely anhydrous phase is obtained after heating the sample up to 600°C and quickly cooling it to room temperature, as shown by means of both Rietveld analysis and IR spectroscopy. The anhydrous phase does not show any tendency to re-acquire molecular water. During the heating process, at around 450°C, a peak splitting is observed, possibly due to a reversible phase transition.

Carbonate-cancrinite: In-situ real-time thermal processes studied by means of energy-dispersive X-ray powder-diffractometry / Ballirano, Paolo; Maras, Adriana; Caminiti, Ruggero; Sadun, Claudia. - In: POWDER DIFFRACTION. - ISSN 0885-7156. - STAMPA. - 10:3(1995), pp. 173-177.

Carbonate-cancrinite: In-situ real-time thermal processes studied by means of energy-dispersive X-ray powder-diffractometry

BALLIRANO, Paolo;MARAS, Adriana;CAMINITI, Ruggero;SADUN, Claudia
1995

Abstract

New powder X-ray data for cancrinite (ideally Na8Si6Al6O24(CO3)2 . 2 H2O) are reported along with in-situ real-time thermal processes recorded using energy dispersive X-ray diffractometry (EDXD). A completely anhydrous phase is obtained after heating the sample up to 600°C and quickly cooling it to room temperature, as shown by means of both Rietveld analysis and IR spectroscopy. The anhydrous phase does not show any tendency to re-acquire molecular water. During the heating process, at around 450°C, a peak splitting is observed, possibly due to a reversible phase transition.
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Carbonate-cancrinite: In-situ real-time thermal processes studied by means of energy-dispersive X-ray powder-diffractometry / Ballirano, Paolo; Maras, Adriana; Caminiti, Ruggero; Sadun, Claudia. - In: POWDER DIFFRACTION. - ISSN 0885-7156. - STAMPA. - 10:3(1995), pp. 173-177.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/255918
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