Praseodymium(III) bromide

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

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

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. "Praseodymium Bromide". American Elements. Retrieved 20 December 2016.
  2. Winter, Mark. "Praseodymium»praseodymium tribromide [WebElements Periodic Table]". www.webelements.com. Retrieved 20 December 2016.
  3. "Praseodymium bromide Br3Pr - PubChem". pubchem.ncbi.nlm.nih.gov. Retrieved 20 December 2016.
  4. 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. 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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