Ytterbium(III) bromide

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
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 diamond
1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Refer to the adjacent table for the main properties of Ytterbium(III) bromide.

Preparation

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
  1. 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)


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