Erbium iodate

Erbium iodate
Identifiers
3D model (JSmol)
  • InChI=1S/3HIO3.Er/c3*2-1(3)4;/h3*(H,2,3,4);/q;;;+3/p-3
    Key: SJSQSCFANAWQCT-UHFFFAOYSA-K
  • [Er+3].O=I(=O)[O-].O=I(=O)[O-].O=I(=O)[O-]
Properties
Er(IO3)3
Molar mass 691.97
Appearance pale pink[1] or orange crystals (anhydrous)[2]
pink[2] or red crystals (dihydrate)[3]
Density 4.956 g·cm−3 (20 °C, dihydrate)[3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Erbium iodate is an inorganic compound with the chemical formula Er(IO3)3.

Preparation

Erbium iodate can be obtained by reacting erbium periodate and periodic acid in water at 160 °C. The reaction will produce anhydrous and dihydrate crystals.[2]

Properties

Erbium iodate dihydrate is stable below 266 °C, loses two molecules of water at 289 °C, and decomposes at 589 °C to generate iodine and release oxygen.[3]

References

  1. ^ Sykora, Richard E.; Khalifah, Peter; Assefa, Zerihun; Albrecht-Schmitt, Thomas E.; Haire, Richard G. (Aug 2008). "Magnetism and Raman spectroscopy of the dimeric lanthanide iodates Ln(IO3)3 (Ln=Gd, Er) and magnetism of Yb(IO3)3". Journal of Solid State Chemistry. 181 (8): 1867–1875. doi:10.1016/j.jssc.2008.04.019.
  2. ^ a b c Douglas, Paul; Hector, Andrew L.; Levason, William; Light, Mark E.; Matthews, Melissa L.; Webster, Michael (Mar 2004). "Hydrothermal Synthesis of Rare Earth Iodates from the Corresponding Periodates: II 1) . Synthesis and Structures of Ln(IO 3 ) 3 (Ln = Pr, Nd, Sm, Eu, Gd, Tb, Ho, Er) and Ln(IO 3 ) 3 · 2H 2 O (Ln = Eu, Gd, Dy, Er, Tm, Yb)". Zeitschrift für anorganische und allgemeine Chemie. 630 (3): 479–483. doi:10.1002/zaac.200300377. ISSN 0044-2313.
  3. ^ a b c Pan, Chun-Yang; Mai, Hai-Deng; Chen, Wu-Zhou; Zhao, Feng-Hua; Yang, Hong-Mei (2014). "Synthesis, Structure, and Properties of a New ErIII Iodate". Australian Journal of Chemistry. 67 (5): 763. doi:10.1071/CH13570. ISSN 0004-9425.