Zirconium selenate

Zirconium selenate
Identifiers
CAS Number	anhydrous: 22995-90-0 ; tetrahydrate: 58370-92-6 ;
3D model (JSmol)	anhydrous: Interactive image; tetrahydrate: Interactive image;
PubChem CID	anhydrous: 157651078;
	InChI InChI=1S/2H2O4Se.Zr/c21-5(2,3)4;/h2(H2,1,2,3,4);/q;; 4/p-4 Key: CPMVSJYYYVVNKO-UHFFFAOYSA-J; tetrahydrate: InChI=1S/2H2O4Se.4H2O.Zr/c21-5(2,3)4;;;;;/h2(H2,1,2,3,4);4*1H2;/q;;;;;; 4/p-4 Key: QKCOGDUMQFBTED-UHFFFAOYSA-J;
	SMILES anhydrous: [Zr 4].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-]; tetrahydrate: [Zr 4].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].O.O.O.O;
Properties
Chemical formula	Zr(SeO4)2
Appearance	colourless crystals (tetrahydrate)
Density	3.806 g·cm−3 (monohydrate); 3.36 g·cm−3 (tetrahydrate)
Boiling point	580 °C (dec.)
Solubility in water	soluble (tetrahydrate)
Related compounds
Other anions	zirconium sulfate
Other cations	hafnium selenate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Zirconium selenate is an inorganic compound with the chemical formula Zr(SeO₄)₂. Its tetrahydrate can be obtained by the reaction of selenic acid and a saturated aqueous solution of zirconium oxychloride octahydrate (or zirconium hydroxide^[2]). The tetrahydrate belongs to the orthorhombic crystal system and is isostructural with Zr(SO₄)₂·4H₂O. It loses water when heated and becomes anhydrous at 220-230 °C.^[3] It reacts with potassium fluoride to obtain K₂Zr(SeO₄)₂F₂·3H₂O.^[4]

References

^ ^a ^b Gerald Giester, Manfred Wildner (Aug 2018). "Contributions to the stereochemistry of zirconium oxysalts—part I: syntheses and crystal structures of novel Zr(SeO4)2·H2O and Zr(SeO4)2·4H2O". Monatshefte für Chemie - Chemical Monthly. 149 (8): 1321–1325. doi:10.1007/s00706-018-2226-7. ISSN 0026-9247. S2CID 103217478. Retrieved 2020-11-28.
^ ^a ^b M. A. Nabar, V. R. Ajgaonkar (1978-02-01). "Studies on selenates. III. Crystal chemical data for zirconium and cerium selenate tetrahydrates". Journal of Applied Crystallography. 11 (1): 56–57. Bibcode:1978JApCr..11...56N. doi:10.1107/S0021889878012686. ISSN 0021-8898. Archived from the original on 2018-06-03. Retrieved 2020-11-28.
^ ^a ^b Davidovich, R. L.; Medkov, M. A. Zirconium and hafnium diselenates. Koordinatsionnaya Khimiya, 1975. (1) 11: 1478-1480. ISSN 0132-344X.
^ Davidovich, R. L.; Medkov, M. A. Selenatofluoride complex compounds of zirconium and hafnium. Koordinatsionnaya Khimiya, 1975. 1 (12): 1646-1653. ISSN 0132-344X.