Abstract
THE diffraction pattern for yttrium vanadate, YVO4, has been reported by Broch1 and appears in the A.S.T.M. Index to the X-ray Powder Data File (4–0457). The patterns for the rare earth vanadates do not appear in the A.S.T.M. Index and apparently have not been previously reported in the literature. In this work, the vanadates of the rare earths from praseodymium to erbium, excepting promethium, have been successfully prepared by heating equimolar powder mixtures of the rare earth oxides, 99.9 per cent, and vanadium pentoxide, C.P., at 950° C. These compounds all have the same tetragonal structure as yttrium vanadate. The reaction product of lanthanum oxide and vanadium pentoxide does not have this structure and has not been identified.
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References
Broch, E., Z. Phys. Chem., 20, 345 (1933).
Remy, H., Treatise on Inorganic Chemistry, 2, 484 (Elsevier Pub. Co., 1956).
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GAMBINO, J., GUARE, C. Yttrium and Rare Earth Vanadates. Nature 198, 1084 (1963). https://doi.org/10.1038/1981084a0
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DOI: https://doi.org/10.1038/1981084a0
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