Bertoluzza, Alessandro and Marinangeli, Annamaria and Simoni, Rosa:
Ricerche sui vetri a base di As2O3 : xAs2O3-Na2O e xAs2O3-K2O
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Serie 8 54 (1973), fasc. n.1, p. 101-106, (Italian)
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Sunto
Glasses of composition xAs2O3-Na2O and xAs2O3-K2O have been prepared and Raman and i.r. spectra studied in relation to the vitreous As2O3 spectra, previously examined. In glasses richer in As2O3, structural centers of vitreous As2O3-namely of the claudetitic type-are present together with centers, typical of alkaline metaarsenite structure, which increase as the alkaline oxide percentage increases. Differently from vitreous As2O3, which, in time, modifies its structure passing from a claudetitic type to an arsenolitic one, Raman spectra show stability in examined glasses.
Referenze Bibliografiche
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