Praseodymium(III) bromide is a crystalline compound of one praseodymium atom and three bromine atoms.[2][3]
| Names | |
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| IUPAC name
Tribromopraseodymium
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| Systematic IUPAC name
Praseodymium(III) bromide | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.033.524 |
| EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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| 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)[2] Some sources say 693 °C[1] |
| Boiling point | 1,547 °C (2,817 °F; 1,820 K)[1] |
| Structure | |
| Tricapped trigonal prismatic | |
| 9 | |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards
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Irritation |
| GHS labelling: | |
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| 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).
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Characteristics
editAppearance
editPraseodymium(III) bromide is a green solid at room temperature.[2][1] It is usually handled as a powder.
Physical
editPraseodymium(III) bromide's molecular weight is 380.62 g.[2][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
editPraseodymium(III) bromide is hygroscopic.[4] Praseodymium(III) bromide has an oxidation number of 3.[1]
Hazard
editPraseodymium(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
edit- ^ a b c d Winter, Mark. "Praseodymium»praseodymium tribromide [WebElements Periodic Table]". www.webelements.com. Retrieved 20 December 2016.
- ^ a b c d "Praseodymium Bromide". American Elements. Retrieved 20 December 2016.
- ^ a b "Praseodymium bromide Br3Pr - PubChem". pubchem.ncbi.nlm.nih.gov. Retrieved 20 December 2016.
- ^ a b 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.
- ^ a b Phillips, Sidney L. (1995). Dale L. Perry (ed.). Handbook of inorganic compounds. Boca Raton: CRC Press. p. 323. ISBN 9780849386718.
- ^ "Information on praseodymium bromide: Etacude.com". chemicals.etacude.com. Retrieved 20 December 2016.
- ^ Wells, A. F. (1984). Structural Inorganic Chemistry (5th ed.). Oxford University Press. p. 421. ISBN 978-0-19-965763-6.
- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1240–1241. ISBN 978-0-08-037941-8.
- ^ 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.
- ^ "Praseodymium Bromide | ProChem, Inc". prochemonline.com. Retrieved 20 December 2016.