Triethyl borate
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| Triethyl borate | |
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| IUPAC name | Triethyl borate |
| Other names | Boron triethoxide Boric acid, triethyl ester |
| Identifiers | |
| CAS number | [150-46-9] |
| SMILES | CCOB(OCC)OCC |
| Properties | |
| Molecular formula | C6H15BO3 |
| Molar mass | 145.99 g mol-1 |
| Appearance | clear liquid |
| Density | 0.858 g/cm3 |
| Melting point |
-85 °C, 188 K, -121 °F |
| Boiling point |
118 °C, 391 K, 244 °F |
| Hazards | |
| Flash point | 11 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Triethyl borate, also called boron triethoxide or boric acid, triethyl ester, is a colorless, flammable liquid with the formula B(C2H5O)3. 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:
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 retardants in textile industry and of some welding fluxes.
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