Misplaced Pages

Praseodymium(III) bromide

Names
IUPAC name Tribromopraseodymium
Systematic IUPAC name Praseodymium(III) bromide
Identifiers
CAS Number	13536-53-3
3D model (JSmol)	Interactive image
ChemSpider	75391
ECHA InfoCard	100.033.524
EC Number	236-893-0236-893-0
PubChem CID	83561
CompTox Dashboard (EPA)	DTXSID9065524
InChI InChI=1S/3BrH.Pr/h3*1H;/q;;;+3/p-3Key: PLKCYEBERAEWDR-UHFFFAOYSA-K
SMILES Br(Br)Br
Properties
Chemical formula	PrBr3
Molar mass	380.62 g/mol
Appearance	Green crystalline solid
Density	5.28 g/cm
Melting point	691 °C (1,276 °F; 964 K) Some sources say 693 °C
Boiling point	1,547 °C (2,817 °F; 1,820 K)
Structure
Crystal structure	Tricapped trigonal prismatic
Coordination geometry	9
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Irritation
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319
Precautionary statements	P261, P280, P305+P351+P338
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

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

Characteristics

Appearance

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

Physical

Praseodymium(III) bromide's molecular weight is 380.62 g. Praseodymium bromide has a density of 5.28 g/cm.

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

Chemical

Praseodymium(III) bromide is hygroscopic. Praseodymium(III) bromide has an oxidation number of 3.

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).

References

1. ^ Winter, Mark. "Praseodymium»praseodymium tribromide [WebElements Periodic Table]". www.webelements.com. Retrieved 20 December 2016.
2. ^ "Praseodymium Bromide". American Elements. 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, Sidney L. (1995). Dale L. Perry (ed.). Handbook of inorganic compounds. Boca Raton: CRC Press. p. 323. ISBN 9780849386718.
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.

• Bromides
• Praseodymium(III) compounds
• Lanthanide halides