Terbium(III) oxalate explained
Terbium(III) oxalate is the oxalate of terbium with the chemical formula Tb2(C2O4)3. Its decahydrate can be obtained by reacting terbium(III) chloride and oxalic acid in an aqueous solution.[1] Its decahydrate gradually loses water when heated and becomes anhydrous. Continued heating obtains terbium(III,IV) oxide.[2] It decomposes in isolation from air to form terbium(III) oxide. The decomposed gas products are carbon monoxide and carbon dioxide. It reacts with hydrochloric acid to obtain H[Tb(C<sub>2</sub>O<sub>4</sub>)<sub>2</sub>]·6H2O.[3]
Notes and References
- Alexander . Dinu . Thomas . Kukku . Sisira . S. . Biju . P.R. . Unnikrishnan . N.V. . Ittyachen . M.A. . Joseph . Cyriac . Synthesis and optical characterization of sub-5 nm Terbium oxalate nanocrystals: A novel intense green emitting phosphor . Dyes and Pigments . January 2018 . 148 . 386–393 . 10.1016/j.dyepig.2017.09.029.
- Wendlandt. W. W.. Thermal Decomposition of Rare Earth Metal Oxalates. Analytical Chemistry. 31. 3. 1959. 408–410. 0003-2700. 10.1021/ac60147a024.
- Moebius, R.; Matthes, F. The exchange of oxalate ions for chloride ions of the oxalate hydrates of the rare earths and yttrium. Zeitschrift fuer Chemie, 1964. 4 (6): 234-235. ISSN: 0044-2402.
