A Raman spectrum consistent with that expected from an Al2OF62-ion was observed when Na2O was dissolved in a eutectic LiF/NaF/KF (FLINAK) melt at 500 degreesC, which contained a low concentration of either AlF3 or Na3AlF6. Furthermore, it was possible to trap the Al2OF62- ion in the frozen solid and to measure its Raman and IR spectra at 25 degreesC. A number of bands have been detected; among those, the two most characteristic bands of the Al2OF62- ion at 494 (polarized) and 265 cm(-1) in the FLINAK melt at 500 degreesC, and those at 509 and 268 (Raman) and similar to 780 to similar to 900 (IR) cm(-1) for the compound matrix isolated in solid FLINAK at 25 degreesC. In the absence of added oxide, the dissolved aluminum fluoride was in the form of the octahedral AlF63- ion, which has characteristic Raman bands at 542 and 325 cm(-1) in the FLINAK melt at 500 degreesC. Whereas alumina, Al2O3, was found to be essentially insoluble in FLINAK melts, it was possible to dissolve sufficient amounts: of Na2O to convert most of the AlF63- to the oxyfluoroaluminate, Al2OF62-. These solutions appeared to be metastable with respect to formation of insoluble alumina at higher temperatures. The present results can be compared to previous measurements on alumina dissolved in pure molten cryolite at much higher temperatures, where alumina solubility is low and broad bands due to oxide species ate difficult to detect due to overlap with bands from AlF63-and AlF4-.