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]

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