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Terbium(III) bromide

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Terbium(III) bromide
Terbium(III) bromide
Terbium(III) bromide
Names
IUPAC name
Terbium(III) bromide
Other names
Terbium tribromide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.034.932Edit this at Wikidata
EC Number
  • 238-442-3
  • InChI=1S/3BrH.Tb/h3*1H;/q;;;+3/p-3
    Key: AZNZWHYYEIQIOC-UHFFFAOYSA-K
  • [Br-].[Br-].[Br-].[Tb+3]
Properties
TbBr3
Molar mass398.637 g/mol
Appearancewhite powder (hexahydrate)[1]
Density4.62 g/cm3[2]
Melting point827[3] °C (1,521 °F; 1,100 K)
Boiling point1,490[4] °C (2,710 °F; 1,760 K)
soluble[4]
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
H315,H319,H335
P261,P264,P271,P280,P302+P352,P304+P340,P305+P351+P338,P312,P321,P332+P313,P337+P313,P362,P403+P233,P405,P501
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound

Terbium(III) bromide (TbBr3) is a crystallinechemical compound.[5]

Production and properties

[edit]

Terbiun(III) bromide can be produced by heatingterbium metal orterbium(III) oxide withammonium bromide.[6]

Tb2O3 + 6 NH4Br → 2 TbBr3 + 6 NH3 + 3 H2O

A solution of terbium(III) bromide can crystallize as a hexahydrate. When heating the hexahydrate, it will dehydrate and produce someterbium oxybromide (TbOBr).[7]

Terbium(III) bromide is a white solid that is soluble in water.[4] Its crystal structure is the same asbismuth iodide.[8]

References

[edit]
  1. ^D. Brown, S. Fletcher, D. G. Holah (1968)."The preparation and crystallographic properties of certain lanthanide and actinide tribromides and tribromide hexahydrates".Journal of the Chemical Society A: Inorganic, Physical, Theoretical:1889–1894.doi:10.1039/j19680001889.ISSN 0022-4944. Retrieved2020-05-29.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. ^americanelements.com:Terbium Bromide
  3. ^Sigma-Aldrich Co.,product no. 466344.
  4. ^abcCRC Handbook of Chemistry and Physics, 87th Edition, S. 4–94
  5. ^"Terbium(III) bromide".
  6. ^Meyer, Gerd; Dötsch, Siegfried; Staffel, Thomas (January 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. Retrieved2020-05-29.
  7. ^I. Mayer, S. Zolotov (September 1965)."The thermal decomposition of rare earth and yttrium bromide hydrates".Journal of Inorganic and Nuclear Chemistry.27 (9):1905–1909.doi:10.1016/0022-1902(65)80042-2. Retrieved2020-05-29.
  8. ^Jean D'Ans, Ellen Lax (1997).Taschenbuch für Chemiker und Physiker. Springer DE. p. 1386.ISBN 354060035-3.
Terbium(III)
Terbium(III,IV)
Terbium(IV)
Salts and covalent derivatives of thebromide ion
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