Jump to content

Samarium(III) arsenate

From Wikipedia, the free encyclopedia
Samarium(III) arsenate
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/AsH3O4.Sm/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+3/p-3
    Key: PHVYCYGJDQEMIH-UHFFFAOYSA-K
  • [O-][As](=O)([O-])[O-].[Sm+3]
Properties
SmAsO4
Appearance light yellow crystals[1]
Density 5.77 g/cm3[2]
Insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Samarium(III) arsenate is an arsenate salt of samarium with the chemical formula SmAsO4. It has good thermal stability, and its pKsp,c is 22.73±0.08.[3]

Preparation

[edit]

Samarium(III) arsenate can be produced by reacting sodium arsenate (Na3AsO4) and samarium(III) chloride (SmCl3) in solution:[4]

Na3AsO4 + SmCl3 → 3 NaCl + SmAsO4

References

[edit]
  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. ^ Schwarz, H. (June 1963). "Die Phosphate, Arsenate und Vanadate der Seltenen Erden". Zeitschrift für anorganische und allgemeine Chemie. 323 (1–2): 44–56. doi:10.1002/zaac.19633230106.
  3. ^ 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.
  4. ^ 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.