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.)

Flash point:

52 °F

storage temp. 

0-6°C

solubility 

Miscible with alcohol and ether.

form 

Liquid

Specific Gravity

0.864

color 

Colorless

Water Solubility 

decomposes

Sensitive 

Moisture Sensitive

Hydrolytic Sensitivity

7: reacts slowly with moisture/water

BRN 

1699052

CAS DataBase Reference

150-46-9(CAS DataBase Reference)

NIST Chemistry Reference

Boric acid, triethyl ester(150-46-9)

EPA Substance Registry System

Boric 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

Toxicity

eye-rbt 100 mg MLD 14KTAK -,706,64

MSDS

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Triethyl borate Usage And Synthesis

Chemical Properties

Triethyl borate is a Colorless liquid; mild odor. Hydrolyzes rapidly depositing boric acid in finely divided crystalline form.

Uses

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 as1,5-hexadiene?dium chloride as a catalyst. Further, it is used in pyrotechnics.

Uses

Antiseptics, 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.

Preparation

Triethyl borate can be prepared by adding anhydrous ethanol with boric acid or boron trioxide. Can be purified via distillation.

Definition

ChEBI: A member of the class of borate esters obtained by the formal condensation of three equivalents of ethanol with boric acid.

Hazard

Flammable, dangerous fire risk.

Safety Profile

Moderately 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 Methods

Dry 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.]

Triethyl borate(150-46-9)Related Product Information

• Ethyl trifluoroacetate
• 5-Chlorovaleric acid
• Pralmorelin
• Triethyl phosphate
• Ethyl 4,4,4-trifluoroacetoacetate
• DL-α-Tocopherol
• Trimethyl borate
• Triethyl phosphite
• Potassium chloride
• Triisopropyl borate
• Triethyl orthoacetate
• Tributyl borate
• Diphenolic acid
• 4-(Diethylamino)salicylaldehyde
• Sodium triacetoxyborohydride
• Triethyl orthoformate
• Triethyl phosphonoacetate
• Triethylamine