Raman spectra of peroxide ions at High temperature

Otori, Norikazu; Ueno, Fumiyoshi ; Furukawa, Tomohiro*

Raman spectra have been obtained for peroxide ion in Na $_{202}$ up to 950 K and in molten NaOH up to 900 K. Drastic changes were observed in the spectra around 780 K, which was able to be attributed to the phase transition between beta and alfa forms. The spectra of peroxide ions in molten NaOH was obtained at 610 K just above the eutectic point and the peak can be observed up to 900 K for the melt containing 20 mol% Na $_{2}$ 2O $_{2}$ . This shows evidently that peroxide ions is able to be present in molten NaOH. An analysis of the peak position suggests the analogous local structure around peroxide ions with that in the crystal.

Language	:	English
Journal	:	Denki Kagaku Oyobi Kogyo Butsuri Kagaku
Volume	:	73
Number	:	8
Pages	:	p.597 - 599
Publication Year/Month	:	2005/08
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Paper URL	:	https://doi.org/10.5796/electrochemistry.73.597
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Keywords	:	no keyword
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Registration No. : 09-2004-0878
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