Triethyl borate

Triethyl borate
  • CAS No.:150-46-9

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  1. This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
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Triethyl borate Basic information
Product Name:Triethyl borate
Synonyms:Triethyl borate, 98+%;Boric acid triethyl ester, Boron ethoxide, Triethoxyborane;Triethoxyborine;ETHYL BORATE;BORIC ACID ETHYL ESTER;BORON TRIETHOXIDE;BORON ETHOXIDE;BORIC ACID TRIETHYL ESTER
CAS:150-46-9
MF:C6H15BO3
MW:145.99
EINECS:205-760-9
Product Categories:Azetidines;organic or inorganic borate;Boronic Acids and Derivatives;Chemical Synthesis;Organoborates;Organometallic Reagents;Organometallics;B (Classes of Boron Compounds);Boric Acid Esters;Boric Acid Triesters
Mol File:150-46-9.mol
Triethyl borate Chemical Properties
Melting point -84.5 °C
Boiling point 117-118 °C(lit.)
density 0.858 g/mL at 25 °C(lit.)
vapor density 5.04 (vs air)
refractive index n20/D 1.374(lit.)
Fp 52 °F
storage temp. 0-6°C
solubility Miscible with alcohol and ether.
form Liquid
Specific Gravity0.864
color Colorless
Water Solubility decomposes
Sensitive Moisture Sensitive
Hydrolytic Sensitivity7: reacts slowly with moisture/water
BRN 1699052
CAS DataBase Reference150-46-9(CAS DataBase Reference)
NIST Chemistry ReferenceBoric acid, triethyl ester(150-46-9)
EPA Substance Registry SystemBoric acid (H3BO3), triethyl ester (150-46-9)
Safety Information
Hazard Codes F
Risk Statements 11
Safety Statements 7-16-23-9-33
RIDADR UN 1176 3/PG 2
WGK Germany 2
RTECS ED5075000
F 21
TSCA Yes
HazardClass 3
PackingGroup II
HS Code 29209085
Toxicityeye-rbt 100 mg MLD 14KTAK -,706,64
MSDS Information
ProviderLanguage
Triethyl borate English
SigmaAldrich English
ACROS English
ALFA English
Triethyl borate Usage And Synthesis
Chemical PropertiesTriethyl borate is a Colorless liquid; mild odor. Hydrolyzes rapidly depositing boric acid in finely divided crystalline form.
UsesTriethyl borate is used as a solvent in resins, paints, varnishes, adhesives and sealant chemicals. It is used as a catalyst of synthetic waxes and resins. It is an active component of flame retardants in the textile industry and in welding fluxes. It is used to prepare m-tolyl-acetic acid ethyl ester by reacting with 1-bromomethyl-3-methyl-benzene and carbon monoxide using as1,5-hexadiene?dium chloride as a catalyst. Further, it is used in pyrotechnics.
UsesTriethyl borate may be used as boron source to synthesize lithium borophosphates, alumina borosilicate ceramic nanofibres and boron-doped single wall carbon nanotubes.
UsesAntiseptics, disinfectants, antiknock agent. Triethyl borate is used as a solvent in resins, paints, varnishes, adhesives and sealant chemicals. It is used as a catalyst of synthetic waxes and resins. It is an active component of flame retardants in the textile industry and in welding fluxes. It is used to prepare m-tolyl-acetic acid ethyl ester by reacting with 1-bromomethyl-3-methyl-benzene and carbon monoxide using as 1,5-hexadiene dium chloride as a catalyst. Further, it is used in pyrotechnics. Triethyl borate may be used as boron source to synthesize lithium borophosphates, alumina borosilicate ceramic nanofibres and boron-doped single wall carbon nanotubes.CVD precursor for boron modified SiO2 in microelectronics Intermediate for organic-modified borosiloxanes.
PreparationTriethyl borate can be prepared by adding anhydrous ethanol with boric acid or boron trioxide. Can be purified via distillation.
DefinitionChEBI: A member of the class of borate esters obtained by the formal condensation of three equivalents of ethanol with boric acid.
HazardFlammable, dangerous fire risk.
Safety ProfileModerately toxic by ingestion. Aneye irritant. A very dangerous fire hazard when exposed toheat or flame. When heated to decomposition it emitsacrid smoke and irritating fumes.
Purification MethodsDry it over sodium, then distil it. Also fractionate it through a gauze packed column. [Charnlet et al. J Chem Soc 2288 1952, as for tributyl borate Johnson & Tompkins Org Synth Coll Vol II 106 1943, Beilstein 1 III 1339, 1 IV 1365.]

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