Holmium(III) selenate

holmium selenate
Identifiers
CAS Number	anhydrate: 20148-59-8 ; octahydrate: 26299-25-2 ;
3D model (JSmol)	anhydrate: Interactive image; octahydrate: Interactive image;
	InChI anhydrate: InChI=1S/2Ho.3H2O4Se/c;;31-5(2,3)4/h;;3(H2,1,2,3,4)/q2+3;;;/p-6 Key: RHIYEWNPRAWTOB-UHFFFAOYSA-H; octahydrate: InChI=1S/2Ho.3H2O4Se.8H2O/c;;31-5(2,3)4;;;;;;;;/h;;3(H2,1,2,3,4);81H2/q2*+3;;;;;;;;;;;/p-6 Key: IFUPSIIMNGJVRI-UHFFFAOYSA-H;
	SMILES anhydrate: [O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[Ho+3].[Ho+3]; octahydrate: O.O.O.O.O.O.O.O.[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[O-][Se](=O)(=O)[O-].[Ho+3].[Ho+3];
Properties
Chemical formula	Ho2O12Se3
Molar mass	758.762 g·mol−1
Appearance	solid
Solubility in water	soluble
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Holmium(III) selenate is an inorganic compound with the chemical formula Ho₂(SeO₄)₃. It exists in the anhydrous form and as an octahydrate. It can be obtained by dissolving holmium(III) oxide in selenic acid solution and evaporating and crystallizing it.^[1] It co-crystallizes with other selenates in solution to obtain complex salts such as K₃Ho(SeO₄)₃·nH₂O,^[2] NH₄Ho(SeO₄)₂·3H₂O^[3] and CH₃NH₃Ho(SeO₄)₂·5H₂O.^[4]

References

^ Wickleder, Mathias S. (2005), Oxo-Selenates of rare earth elements, Handbook on the Physics and Chemistry of Rare Earths, vol. 35, Elsevier, pp. 45–105, doi:10.1016/s0168-1273(05)35002-1, ISBN 9780444520289, retrieved 2023-12-05
^ M.A. Nabar, Veena R. Naik (Jul 1998). "Studies on selenates XIII: Synthesis and crystal chemical characterisation of K3Ln(SeO4)3.nH2O". Journal of Alloys and Compounds. 275–277: 54–57. doi:10.1016/S0925-8388(98)00273-4. Archived from the original on 2018-06-28. Retrieved 2020-05-29.
^ "Zhurnal Neorganicheskoi Khimii (Inorganic Chemistry) is 50". Russian Journal of Inorganic Chemistry. 51 (5): 844–845. May 2006. doi:10.1134/s0036023606050287. ISSN 0036-0236. S2CID 189775040.
^ Revathy Rajagopal, Vishnu R. Ajgaonkar (2002-10-01). "Synthesis, Characterization, and Thermal Decomposition of Double Rare Earth Monomethylammonium Selenates". Monatshefte für Chemie / Chemical Monthly. 133 (11): 1387–1395. doi:10.1007/s007060200112. ISSN 0026-9247. S2CID 97001932. Retrieved 2020-05-29.

[1] Wickleder, Mathias S. (2005), Oxo-Selenates of rare earth elements, Handbook on the Physics and Chemistry of Rare Earths, vol. 35, Elsevier, pp. 45–105, doi:10.1016/s0168-1273(05)35002-1, ISBN 9780444520289, retrieved 2023-12-05

[2] M.A. Nabar, Veena R. Naik (Jul 1998). "Studies on selenates XIII: Synthesis and crystal chemical characterisation of K3Ln(SeO4)3.nH2O". Journal of Alloys and Compounds. 275–277: 54–57. doi:10.1016/S0925-8388(98)00273-4. Archived from the original on 2018-06-28. Retrieved 2020-05-29.

[3] "Zhurnal Neorganicheskoi Khimii (Inorganic Chemistry) is 50". Russian Journal of Inorganic Chemistry. 51 (5): 844–845. May 2006. doi:10.1134/s0036023606050287. ISSN 0036-0236. S2CID 189775040.

[4] Revathy Rajagopal, Vishnu R. Ajgaonkar (2002-10-01). "Synthesis, Characterization, and Thermal Decomposition of Double Rare Earth Monomethylammonium Selenates". Monatshefte für Chemie / Chemical Monthly. 133 (11): 1387–1395. doi:10.1007/s007060200112. ISSN 0026-9247. S2CID 97001932. Retrieved 2020-05-29.

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