Thermal decomposition of some rare earth metal cupferrates and neocupferrates |
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| Authors: | Wesley W. Wendlandt |
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| Affiliation: | Department of Chemistry and Chemical Engineering, Texas Technological College, Lubbock, TexasU.S.A. |
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| Abstract: | The thermal decomposition of the eupferrates and neocupferrates of europium, terbium, dysprosium, holmium, erbium, and ytterbium was studied on the thermobalance. The metal chelates possessed poor thermal stability as well as a pronounced tendency to Coprecipitate reagent. The minimum oxide level temperatures for the metal cupferrates were : Eu, 570°; Tb, 540°; Dy, 550°; Ho, 610°; Er, 550° and Yb, 520°. The minimum oxide level temperatures for the metal neocupferrates were: Eu, 560°; Tb 565°; Dy, 540°; Ho,445°; Er, 530°; and Yb, 485°. |
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