This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) Some of this article's listed sources may not be reliable. Please help improve this article by looking for better, more reliable sources. Unreliable citations may be challenged and removed. (December 2021) (Learn how and when to remove this template message) An editor has performed a search and found that sufficient sources exist to establish the subject's notability. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Samarium(III) bromide" – news · newspapers · books · scholar · JSTOR (December 2021) (Learn how and when to remove this template message) (Learn how and when to remove this template message)
Samarium(III) bromide
Names
IUPAC name
samarium(III) bromide
Other names
samarium tribromide
tribromosamarium
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.938 Edit this at Wikidata
EC Number
  • 237-347-4
  • InChI=1S/3BrH.6H2O.Sm/h3*1H;6*1H2;/q;;;;;;;;;+3/p-3
    Key: LXJDCZVUWJNXRL-UHFFFAOYSA-K
  • Br[Sm](Br)Br
  • [Br-].[Br-].[Br-].[Sm+3]
Properties
SmBr3
Molar mass 390.07 g·mol−1
Appearance Light yellow solid[1][2]
Melting point 700 °C (1,292 °F; 973 K)<[3]
+972.0·10−6 cm3/mol
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335[3]
P261, P305+P351+P338[3]
Related compounds
Other anions
 Samarium(III) fluoride
Samarium(III) chloride
Other cations
 Samarium(II) bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Samarium(III) bromide is a crystalline compound of one samarium and three bromine atoms with the chemical formula of SmBr3. Samarium(III) bromide is a dark brown powder at room temperature.[4] The compound has a crystal structure isotypic to that of plutonium(III) bromide.[5][6]

Preparation

SmBr3·6H2O can be crystallized by dissolving samarium oxide in 40% hydrobromic acid. The hydrate and ammonium bromide are heated in a vacuum to obtain the anhydrous form of samarium(III) bromide.[2]

Other compounds

Samarium(III) bromide forms some compounds with hydrazine, such as SmBr3·3N2H4·H2O which is a pale yellow needle-shaped crystal that is soluble in water and ethanol but insoluble in benzene, with d20 °C = 3.147 g/cm3.[7]

References

  1. ^ Haynes, William M. (2016-06-24). CRC Handbook of Chemistry and Physics 97th Edition. CRC Press. pp. 4–83. ISBN 978-1-4987-5428-6.
  2. ^ a b 林平娣, 吴国庆. 无水三溴化钐和三溴化镱的制备 Archived 2022-01-01 at the Wayback Machine[J]. 化学试剂, 1991(1):13-14.
  3. ^ a b c "Samarium(III) bromide anhydrous, beads, −10 mesh, 99.99% | Sigma-Aldrich". www.sigmaaldrich.com. Retrieved 21 December 2016.
  4. ^ Elements, American. "Samarium(III) Bromide Hexahydrate". American Elements. Retrieved 21 December 2016.
  5. ^ Christoph Janiak, Hans-Jürgen Meyer, Dietrich Gudat, Ralf Alsfasser (2012). Riedel Moderne Anorganische Chemie. Walter de Gruyter. ISBN 978-3-11-024901-9.((cite book)): CS1 maint: multiple names: authors list (link)
  6. ^ Wells, A. F. (1984). Structural Inorganic Chemistry (5th ed.). Oxford University Press. p. 421. ISBN 978-0-19-965763-6.
  7. ^ Uchenye zapiski: Serii︠a︡ khimicheskikh nauk (SM Kirov adyna Azărbai̐jan Dȯvlăt Universiteti; 1977), page 37. Retrieved 14 March 2021.


Categories