Difference between revisions of "Phosphorus tribromide"
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| − | '''Phosphorus tribromide''', PBr<sub>3</sub>, is a colourless liquid which fumes in moist air. It is used as a reagent in [[organic synthesis]], where it converts [[alcohol]]s into [[bromoalkane]]s.<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> | + | '''Phosphorus tribromide''', PBr<sub>3</sub>, is a colourless liquid which fumes in moist air. It is used as a reagent in [[organic synthesis]], where it converts [[alcohol]]s into [[bromoalkane]]s.<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>{{OrgSynth | first1 = George C. | last1 = Harrison | first2 = Harvey | last2 = Diehl | title = β-Ethoxyethyl bromide | prep=cv3p0370 | collvol = 3 | collvolpages = 370 | volume = 23 | pages = 32 | year = 194}}.</ref> |
==Notes and references== | ==Notes and references== | ||
Revision as of 17:19, 7 January 2011
| Phosphorus tribromide | |
|---|---|
| Other names | Tribromophosphane |
| Identifiers | |
| InChI | InChI=1/Br3P/c1-4(2)3 |
| InChIKey | IPNPIHIZVLFAFP-UHFFFAOYAL |
| Standard InChI | InChI=1S/Br3P/c1-4(2)3 |
| Standard InChIKey | IPNPIHIZVLFAFP-UHFFFAOYSA-N |
| CAS number | [] |
| EC number | |
| UN number | 1808 |
| RTECS | TH4460000 |
| ChemSpider | |
| Properties[1][2][3] | |
| Chemical formula | PBr3 |
| Molar mass | 270.69 g mol−1 |
| Appearance | colorless liquid |
| Density | 2.852 g cm−3 |
| Melting point |
−41.5 °C |
| Boiling point |
173.2 °C |
| Critical point | 438 °C (711 K) |
| Solubility in water | hydrolyzes |
| Refractive index (nD) | 1.697 |
| Thermochemistry[2] | |
| Std enthalpy of formation ΔfH |
−146.02 kJ mol−1 |
| Standard molar entropy S |
348.22 J K–1 mol–1 |
| Hazards[4] | |
| EU index number | 015-103-00-6 |
| GHS pictograms |  
|
| GHS signal word | DANGER |
| GHS hazard statements | H314, H335 [note 1] |
| GHS precautionary statements | P260, P261, P264, P271, P280, P301+330+331, P303+361+353, P363, P304+340, P310, P312, P321, P305+351+338, P403+233 |
| Related compounds | |
| Other anions | Phosphorus trifluoride Phosphorus trichloride Phosphorus triiodide |
| Other cations | Nitrogen tribromide Arsenic tribromide Antimony tribromide Bismuth tribromide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Phosphorus tribromide, PBr3, is a colourless liquid which fumes in moist air. It is used as a reagent in organic synthesis, where it converts alcohols into bromoalkanes.[5][6]
Notes and references
Notes
- ↑ Within the European Union, the following additional hazard statement (EUH014) must also be displayed on labelling: Reacts violently with water.
References
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-127. ISBN 0-8493-0462-8.
- ↑ 2.0 2.1 Phosphorus tribromide. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/Br3P/c2-1(3)4>. (accessed 7 January 2011).
- ↑ Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 568–70. ISBN 0-08-022057-6.
- ↑ Index no. 015-103-00-6 of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 386.
- ↑ 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.
- ↑ Harrison, George C.; Diehl, Harvey β-Ethoxyethyl bromide. Org. Synth. 194, 23, 32, <http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?prep=cv3p0370>; Coll. Vol., 3, 370.
External links
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See also the corresponding article on Wikipedia. |
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