Praseodymium(III) bromide explained

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.[1] It is usually handled as a powder.

Physical

Praseodymium(III) bromide's molecular weight is 380.62 g.[2] [3] Praseodymium bromide has a density of 5.28 g/cm2.[4] [5]

adopts the crystal structure.[6] 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.[7]

Chemical

Praseodymium(III) bromide is hygroscopic.[3] Praseodymium(III) bromide has an oxidation number of 3.[1]

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).[8]

Notes and References

  1. Web site: Winter. Mark. Praseodymium»praseodymium tribromide [WebElements Periodic Table]]. www.webelements.com. 20 December 2016.
  2. Web site: Praseodymium bromide Br3Pr - PubChem. pubchem.ncbi.nlm.nih.gov. 20 December 2016.
  3. Web site: 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. 20 December 2016.
  4. Web site: Information on praseodymium bromide: Etacude.com. chemicals.etacude.com. 20 December 2016.
  5. Book: Phillips . Sidney L. . Dale L. Perry . Handbook of inorganic compounds. 1995. CRC Press. Boca Raton. 9780849386718. 323.
  6. Book: A. F. . Wells . Structural Inorganic Chemistry . 5th . 1984 . Oxford University Press . 978-0-19-965763-6 . 421 .
  7. Structure and crystal fields of PrBr3 and PrCl3: A neutron study . B. . Schmid . B. . Hälg . A. . Furrer . . 1987 . 61 . 8 . 3426–3428 . 10.1063/1.338741 . 1987JAP....61.3426S .
  8. Web site: Praseodymium Bromide ProChem, Inc.. prochemonline.com. 20 December 2016.

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