Boron trichloride
| Boron trichloride | |
|---|---|
| Identifiers | |
| InChI | InChI=1/B.3ClH/h;3*1H/q+3;;;/p-3 |
| InChIKey | PYQQLJUXVKZOPJ-DFZHHIFOAV |
| Standard InChI | InChI=1S/BCl3/c2-1(3)4 |
| Standard InChIKey | FAQYAMRNWDIXMY-UHFFFAOYSA-N |
| CAS number | [] |
| EC number | |
| RTECS | ED1925000 |
| ChemSpider | |
| Properties[1][2] | |
| Chemical formula | BCl3 |
| Molar mass | 117.17 g mol−1 |
| Appearance | Colourless gas or volatile liquid |
| Density | 4.95 kg m−3 (gas, 15 °C) 1.349 g cm−3 (liquid at b.p.) |
| Melting point |
-107.3 °C |
| Boiling point |
12.5 °C |
| Solubility in water | reacts violently |
| Refractive index (nD) | 1.4195 |
| Structure | |
| Molecular geometry | Trigonal planar (D3h) |
| Dipole moment | zero |
| Thermochemistry[2][3] | |
| Std enthalpy of formation ΔfH |
–402.96 kJ mol−1 |
| Standard molar entropy S |
290.17 J K–1 mol–1 |
| Specific heat capacity C | 62 J K–1 mol–1 |
| Std enthalpy of vaporization ΔvapH |
203.15 kJ kg−1 at b.p. |
| Hazards[4] | |
| Material safety data sheet (MSDS) | ICSC |
| EU index number | 005-002-00-5 |
| GHS pictograms |   
|
| GHS signal word | DANGER |
| GHS hazard statements | H330, H300, H314 [note 1] |
| Related compounds | |
| Other anions | Boron trifluoride Boron tribromide Boron triiodide |
| Other cations | Aluminium chloride Gallium chloride Indium chloride Thallium(III) chloride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Boron trichloride, BCl3, is a colourless, toxic gas. It is used in the manufacture of pure boron, and has several uses in metallurgy. It is also a versatile reagent in organic synthesis, particularly as a Lewis acid and for cleaving the carbon–oxygen bond in ethers: in the laboratory, it is normally handled as its dimethyl sulfide adduct.
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-84. ISBN 0-8493-0462-8.
- ↑ 2.0 2.1 Boron trichloride. In Gas Encyclopedia; Air Liquide, <http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=63>. (accessed 22 June 2010).
- ↑ Borane, trichloro-. In NIST Chemistry WebBook; National Institute for Standards and Technology, <http://webbook.nist.gov/cgi/inchi/InChI%3D1S/BCl3/c2-1(3)4>. (accessed 22 June 2010).
- ↑ Index no. 005-002-00-5 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 341.
External links
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See also the corresponding article on Wikipedia. |
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