Ytterbium(III) bromide

(Redirected from Ytterbium tribromide)

Ytterbium(III) bromide (YbBr3) is an inorganic chemical compound.

Ytterbium(III) bromide
Ytterbium(III) bromide
Names
Other names
ytterbium tribromide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.940 Edit this at Wikidata
EC Number
  • 237-350-0
  • InChI=1S/3BrH.Yb/h3*1H;/q;;;+3/p-3 checkY
    Key: QNLXXQBCQYDKHD-UHFFFAOYSA-K checkY
  • InChI=1/3BrH.Yb/h3*1H;/q;;;+3/p-3
    Key: QNLXXQBCQYDKHD-DFZHHIFOAH
  • Br[Yb](Br)Br
Properties
YbBr3
Molar mass 412.77 g/mol
Appearance white crystalline
Melting point 677 °C (1,251 °F; 950 K)[1]
Boiling point 1,800 °C (3,270 °F; 2,070 K)[1]
Structure
Trigonal, hR24
R-3, No. 148
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P332+P313, P337+P313, P362, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth (blue): no hazard codeFlammability (red): no hazard codeInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Refer to the adjacent table for the main properties of Ytterbium(III) bromide.

Preparation

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Dissolving ytterbium oxide into 40% hydrobromic acid forms YbBr3·6H2O crystals. After mixing the hydrate with ammonium bromide and heating it in a vacuum, anhydrous YbBr3 can be obtained.[2]

Yb2O3 + 6 HBr → 2 YbBr3 + 3 H2O

Ytterbium(III) bromide can also be prepared by directly heating ytterbium oxide and ammonium bromide.[3]

References

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  1. ^ a b Walter Benenson; John W. Harris; Horst Stöcker (2002). Handbook of Physics. Springer. p. 781. ISBN 0-387-95269-1.
  2. ^ 林平娣, 吴国庆. 无水三溴化钐和三溴化镱的制备 Archived November 12, 2017, at the Wayback Machine[J]. 化学试剂, 1991(1):13-14.
  3. ^ Gerd Meyer, Siegfried Dötsch, Thomas Staffel (1987). "The ammonium-bromide route to anhydrous rare earth bromides MBr3". Journal of the Less Common Metals. 127: 155–160. doi:10.1016/0022-5088(87)90372-9. Retrieved 2020-05-29.{{cite journal}}: CS1 maint: multiple names: authors list (link)