Difference between revisions of "Praseodymium(III) bromide"
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| − | '''Praseodymium(III) bromide''', PrBr<sub>3</sub>, is the main [[bromide]] of [[praseodymium]]. The the hydrate is prepared by dissolving [[praseodymium(III) oxide]] or [[praseodymium carbonate]] in [[hydrobromic acid]], but cannot be dehydrated without partial hydrolysis.<ref name="G&E"/> The anhydrous salt is prepared by reaction of the elements.<ref name="G&E"/> It is a component of the molten salt bath used for the reduction of [[uranium oxide]] by [[magnesium]] | + | '''Praseodymium(III) bromide''', PrBr<sub>3</sub>, is the main [[bromide]] of [[praseodymium]]. The the hydrate is prepared by dissolving [[praseodymium(III) oxide]] or [[praseodymium carbonate]] in [[hydrobromic acid]], but cannot be dehydrated without partial hydrolysis.<ref name="G&E"/> The anhydrous salt is prepared by reaction of the elements.<ref name="G&E"/> It is a component of the molten salt bath used for the reduction of [[uranium oxide]] by [[magnesium]],<ref name="Kirk-Othmer">{{Kirk-Othmer | first1 = S. D. | last1 = Ukeles | first2 = M. | last2 = Freiberg | contribution = Bromine, Inorganic Compounds | doi = 10.1002/0471238961.021815131001031 | year = 2002}}.</ref><ref>{{citation | inventor-first = Guy R. B. | inventor-last = Elliott | title = Magnesium reduction of uranium oxide | country-code = US | patent-number = 4534792 | publication-date = 1985-08-13}}.</ref> and is used in light filters for cathode-ray tubes.<ref name="Kirk-Othmer"/><ref>{{citation | inventor1-last = Fitzpatrick | inventor1-first = Brian John | assignee = Philips NV | title = Green luminescing cathode-ray tube device | country-code = EP | patent-number = 0114436 | publication-date = 1984-08-01}}.</ref> |
==Notes and references== | ==Notes and references== | ||
Latest revision as of 06:34, 9 January 2011
| Praseodymium(III) bromide | |
|---|---|
| Other names | Praseodymium tribromide |
| Identifiers | |
| InChI | InChI=1/3BrH.Pr/h3*1H;/q;;;+3/p-3 |
| InChIKey | PLKCYEBERAEWDR-DFZHHIFOAZ |
| Standard InChI | InChI=1S/3BrH.Pr/h3*1H;/q;;;+3/p-3 |
| Standard InChIKey | PLKCYEBERAEWDR-UHFFFAOYSA-K |
| CAS number | [] |
| EC number | |
| ChemSpider | |
| Properties[1][2] | |
| Chemical formula | PrBr3 |
| Molar mass | 380.62 g mol−1 |
| Appearance | green solid |
| Density | 5.30 g cm−3 |
| Melting point |
691 °C |
| Boiling point |
1547 °C |
| Related compounds | |
| Other anions | Praseodymium(III) fluoride Praseodymium(III) chloride Praseodymium(III) iodide |
| Other cations | Lanthanum bromide Cerium(III) bromide Neodymium(III) bromide Promethium(III) bromide |
| Other compounds | Dipraseodymium pentabromide Praseodymium(III) bromate |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Praseodymium(III) bromide, PrBr3, is the main bromide of praseodymium. The the hydrate is prepared by dissolving praseodymium(III) oxide or praseodymium carbonate in hydrobromic acid, but cannot be dehydrated without partial hydrolysis.[1] The anhydrous salt is prepared by reaction of the elements.[1] It is a component of the molten salt bath used for the reduction of uranium oxide by magnesium,[3][4] and is used in light filters for cathode-ray tubes.[3][5]
Notes and references
Notes
References
- ↑ 1.0 1.1 1.2 Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 1439–41. ISBN 0-08-022057-6.
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-138. ISBN 0-8493-0462-8.
- ↑ 3.0 3.1 Ukeles, S. D.; Freiberg, M. Bromine, Inorganic Compounds. In Kirk-Othmer Encyclopedia of Chemical Technology; John Wiley: New York, 2002. DOI: 10.1002/0471238961.021815131001031.
- ↑ Elliott, Guy R. B. Magnesium reduction of uranium oxide. US Patent 4534792, published 13 August 1985.
- ↑ Fitzpatrick, Brian John (Philips NV) Green luminescing cathode-ray tube device. EP Patent 0114436, published 1 August 1984.
Further reading
- Goryushkina, Yu. V.; Monaenkova, A. S.; Popova, A. A.; Tiflova, L. A. Zh. Fiz. Khim. 2006, 80 (11), 1928–31; The enthalpies of formation of praseodymium halides PrCl3, PrBr3, and PrI3 in the crystalline state and aqueous solution. Russ. J. Phys. Chem. (Engl. Transl.), 80 (11), 1710–13. DOI: 10.1134/S0036024406110021.
External links
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