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Gadolinium(III) oxalate

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Gadolinium oxalate is the oxalateofgadolinium, with the chemical formula Gd₂(C₂O₄)₃. Its hydrate can be prepared by the reaction of gadolinium nitrate and oxalic acid.^[1]

Gadolinium(III) oxalate
Identifiers
CAS Number	867-64-1^Y
3D model (JSmol)	Interactive image decahydrate: Interactive image
ChemSpider	132965 decahydrate: 21241441
ECHA InfoCard	100.011.606
EC Number	212-766-5
PubChem CID	150859 decahydrate: 159625035
CompTox Dashboard (EPA)	DTXSID101014689
InChI InChI=1S/3C2H2O4.2Gd/c33-1(4)2(5)6;;/h3(H,3,4)(H,5,6);;/q;;;2+3/p-6 Key: SQORATIMOBOFKR-UHFFFAOYSA-H decahydrate: InChI=1S/3C2H2O4.2Gd.10H2O/c33-1(4)2(5)6;;;;;;;;;;;;/h3(H,3,4)(H,5,6);;;101H2/q;;;2*+3;;;;;;;;;;/p-6 Key: MOJMYWALZOTAOX-UHFFFAOYSA-H
SMILES [Gd+3].[Gd+3].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-] decahydrate: C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].O.O.O.O.O.O.O.O.O.O.[Gd+3].[Gd+3]
Properties
Chemical formula	Gd₂(C₂O₄)₃
Appearance	colorless crystals
Solubility in water	insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Properties

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The decahydrate of gadolinium oxalate thermally decomposes to obtain the anhydrous form, which can then be heated to produce gadolinium oxide.^[2] Gadolinium oxalate reacts with hydrochloric acid to produce Gd(C₂O₄)Cl.^[3] It also reacts with sodium hydroxide under hydrothermal conditions to produce gadolinium hydroxide.^[1]

References

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^ ^a ^b Yidong Yin, Guangyan Hong (2006-11-03). "Synthesis and characterization of Gd(OH)3 nanobundles". Journal of Nanoparticle Research. 8 (5): 755–760. Bibcode:2006JNR.....8..755Y. doi:10.1007/s11051-005-9044-7. ISSN 1388-0764. S2CID 98381833. Retrieved 2020-10-11.

^ Wendlandt, W. W. (1959). "Thermal Decomposition of Rare Earth Metal Oxalates". Analytical Chemistry. 31 (3): 408–410. doi:10.1021/ac60147a024. ISSN 0003-2700.

^ Moebius, R.; Matthes, F. (1964). "The exchange of oxalate ions for chloride ions of the oxalate hydrates of the rare earths and yttrium". Zeitschrift für Chemie. 4 (6): 234–235. ISSN 0044-2402.

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