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 &deg;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 &deg;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|&#8652;}} 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] {{ester-stub}} [[Category:Borates]] [[Category:Esters]] [[Category:Solvents]]