Praseodymium(III) bromide
Names
IUPAC name
Tribromopraseodymium
Systematic IUPAC name
Praseodymium(III) bromide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.524
EC Number
  • 236-893-0236-893-0
  • InChI=1S/3BrH.Pr/h3*1H;/q;;;+3/p-3
    Key: PLKCYEBERAEWDR-UHFFFAOYSA-K
  • Br[Pr](Br)Br
Properties
PrBr3
Molar mass 380.62 g/mol
Appearance Green crystalline solid
Density 5.28 g/cm3
Melting point 691 °C (1,276 °F; 964 K)[1] Some sources say 693 °C[2]
Boiling point 1,547 °C (2,817 °F; 1,820 K)[2]
Structure
Tricapped trigonal prismatic
9
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Irritation
GHS labelling:
GHS07: Exclamation mark
Warning
H315, H319
P261, P280, P305+P351+P338
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Praseodymium(III) bromide is a crystalline compound of one praseodymium atom and three bromine atoms.[1][3]

Characteristics

Appearance

Praseodymium(III) bromide is a green solid at room temperature.[1][2] It is usually handled as a powder.

Physical

Praseodymium(III) bromide's molecular weight is 380.62 g.[1][3][4][5] Praseodymium bromide has a density of 5.28 g/cm2.[6][5]

PrBr3 adopts the UCl3 crystal structure.[7] The praseodymium ions are 9-coordinate and adopt a tricapped trigonal prismatic geometry.[8] The praseodymium–bromine bond lengths are 3.05 Å and 3.13 Å.[9]

Chemical

Praseodymium(III) bromide is hygroscopic.[4] Praseodymium(III) bromide has an oxidation number of 3.[2]

Hazard

Praseodymium(III) bromide can cause skin irritation (H315/R38), eye irritation (H319/R36), and that breathing dust/fume/gas/mist/vapours/spray of Praseodymium(III) bromide should be avoided (P261/S23), that one should wash hands thoroughly after handling (P264), one should wear protective gloves and clothes clothing, and wear eye protection and face protection (P280/S36/S37/S39), and that if one gets Praseodymium(III) bromide in their eyes, that they should wash their eyes cautiously for several minutes, removing contact lenses if possible (P305).[10]

References

  1. 1 2 3 4 "Praseodymium Bromide". American Elements. Retrieved 20 December 2016.
  2. 1 2 3 4 Winter, Mark. "Praseodymium»praseodymium tribromide [WebElements Periodic Table]". www.webelements.com. Retrieved 20 December 2016.
  3. 1 2 "Praseodymium bromide Br3Pr - PubChem". pubchem.ncbi.nlm.nih.gov. Retrieved 20 December 2016.
  4. 1 2 Chambers, Michael. "ChemIDplus - 0013536533 - PLKCYEBERAEWDR-UHFFFAOYSA-K - Praseodymium bromide (PrBr3) - Similar structures search, synonyms, formulas, resource links, and other chemical information". chem.nlm.nih.gov. Retrieved 20 December 2016.
  5. 1 2 Phillips, edited by Dale L. Perry, Sidney L. (1995). Handbook of inorganic compounds. Boca Raton: CRC Press. p. 323. ISBN 9780849386718. {{cite book}}: |first1= has generic name (help)CS1 maint: multiple names: authors list (link)
  6. ↑ "Information on praseodymium bromide: Etacude.com". chemicals.etacude.com. Retrieved 20 December 2016.
  7. ↑ Wells, A. F. (1984). Structural Inorganic Chemistry (5th ed.). Oxford University Press. p. 421. ISBN 978-0-19-965763-6.
  8. ↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1240–1241. ISBN 978-0-08-037941-8.
  9. ↑ Schmid, B.; Hälg, B.; Furrer, A. (1987). "Structure and crystal fields of PrBr3 and PrCl3: A neutron study". J. Appl. Phys. 61 (8): 3426–3428. Bibcode:1987JAP....61.3426S. doi:10.1063/1.338741.
  10. ↑ "Praseodymium Bromide | ProChem, Inc". prochemonline.com. Retrieved 20 December 2016.
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