Triethyl borate
2237903
143551530
2007-07-09T18:44:14Z
Chem-awb
4806773
Removed {{ChemicalSources}} as obsolete
{{Chembox new
| ImageFile = triethyl borate.png
| ImageSize =
| IUPACName = Triethyl borate
| OtherNames = Boron triethoxide<br>Boric acid, triethyl ester
| Section1 = {{Chembox Identifiers
| CASNo = 150-46-9
| PubChem =
| SMILES = CCOB(OCC)OCC
}}
| Section2 = {{Chembox Properties
| B = 1 | C = 6 | H = 15 | O = 3
| Appearance = clear liquid
| Density = 0.858 g/cm<sup>3</sup>
| MeltingPtC = -85
| BoilingPtC = 118
| Solubility =
}}
| Section3 = {{Chembox Hazards
| MainHazards =
| FlashPt = 11 °C
| Autoignition =
}}
}}
'''Triethyl borate''', also called '''boron triethoxide''' or '''boric acid, triethyl ester''', is a colorless, flammable liquid with the formula [[Boron|B]]([[Carbon|C]]<sub>2</sub>[[Hydrogen|H]]<sub>5</sub>[[Oxygen|O]])<sub>3</sub>. It is an [[ester]] of [[boric acid]] and [[ethanol]].
It melts at -85 °C and boils at 118 °C. It is flammable, with [[flash point]] at 11 °C.
It burns with a green flame and solutions of it in ethanol are therefore used in special effects and pyrotechnics.
It can be formed by dissolving [[boric acid]] in [[ethanol]], where it forms according to the equilibrium reaction:
:[[Boric acid|B(OH)<sub>3</sub>]] + [[Ethanol|C<sub>2</sub>H<sub>5</sub>OH]] {{unicode|⇌}} B(C<sub>2</sub>H<sub>5</sub>O)<sub>3</sub> + [[Water|H<sub>2</sub>O]]
It is used as a [[solvent]] and/or [[catalyst]] in preparation of synthetic waxes, resins, paints, and varnishes. It is used as a component of some [[flame retardant]]s in textile industry and of some [[welding]] [[flux (metallurgy)|fluxes]].
==External links==
* [http://www.npi.gov.au/database/substance-info/profiles/15.html National Pollutant Inventory - Boron and compounds]
* [http://webbook.nist.gov/cgi/cbook.cgi?ID=C150469 WebBook page for BC6H15O3]
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[[Category:Borates]]
[[Category:Esters]]
[[Category:Solvents]]