Samarium(III) arsenate

Samarium(III) arsenate
Identifiers
CAS Number	15479-87-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	21428578 ;
PubChem CID	25022139;
	InChI InChI=1S/AsH3O4.Sm/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+3/p-3 Key: PHVYCYGJDQEMIH-UHFFFAOYSA-K;
	SMILES [O-][As](=O)([O-])[O-].[Sm+3];
Properties
Chemical formula	SmAsO4
Appearance	light yellow 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

Samarium(III) arsenate is an arsenate salt of samarium with the chemical formula SmAsO₄. It has good thermal stability, and its pK_sp,c is 22.73±0.08.^[2]

Preparation[edit]

Samarium(III) arsenate can be produced by reacting sodium arsenate (Na₃AsO₄) and samarium(III) chloride (SmCl₃) in solution:^[3]

Na₃AsO₄ + SmCl₃ → 3 NaCl + SmAsO₄↓

References[edit]

^ Kang, Dong-Hee; Schleid, Thomas (2005-07-26). "Einkristalle von La[AsO₄] im Monazit- und Sm[AsO₄] im Xenotim-Typ". Zeitschrift für anorganische und allgemeine Chemie. 631 (10): 1799–1802. doi:10.1002/zaac.200500209. ISSN 0044-2313.
^ Firsching, F. Henry (Oct 1992). "Solubility products of the trivalent rare-earth arsenates". Journal of Chemical & Engineering Data. 37 (4): 497–499. doi:10.1021/je00008a028. ISSN 0021-9568.
^ Ismailzade, I. H.; Alekberov, A. I.; Ismailov, R. M.; Asadova, R. K.; Gabisoniya, Ts D.; Nanobashvili, Ye M. (Jan 1980). "Ferroelectricity in the crystals RAsO₄ (R = Pr, Nd, Eu, Gd, Tb, Dy, Er, Yb)". Ferroelectrics. 23 (1): 35–37. Bibcode:1980Fer....23...35I. doi:10.1080/00150198008224808. ISSN 0015-0193.

[1] Kang, Dong-Hee; Schleid, Thomas (2005-07-26). "Einkristalle von La[AsO₄] im Monazit- und Sm[AsO₄] im Xenotim-Typ". Zeitschrift für anorganische und allgemeine Chemie. 631 (10): 1799–1802. doi:10.1002/zaac.200500209. ISSN 0044-2313.

[2] Firsching, F. Henry (Oct 1992). "Solubility products of the trivalent rare-earth arsenates". Journal of Chemical & Engineering Data. 37 (4): 497–499. doi:10.1021/je00008a028. ISSN 0021-9568.

[3] Ismailzade, I. H.; Alekberov, A. I.; Ismailov, R. M.; Asadova, R. K.; Gabisoniya, Ts D.; Nanobashvili, Ye M. (Jan 1980). "Ferroelectricity in the crystals RAsO₄ (R = Pr, Nd, Eu, Gd, Tb, Dy, Er, Yb)". Ferroelectrics. 23 (1): 35–37. Bibcode:1980Fer....23...35I. doi:10.1080/00150198008224808. ISSN 0015-0193.

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