Triethyl borate

CAS Number

150-46-9

Molecular Formula

C₆H₁₅BO₃

Also known as:

Triethyl borate; Triethoxyborane; Boric acid, triethyl ester; B(OCH₂CH₃)₃

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Product Description

Triethyl borate CAS 150-46-9
Triethyl borate (also known as triethoxyborane) is a volatile borate ester supplied as a colorless, moisture-sensitive liquid. It is employed as a boron donor and reagent in organic synthesis, as a precursor for boron-containing catalysts and materials, and as a specialty solvent/reagent where low-residue boron donation is required. Handle under dry, ventilated conditions and control sources of ignition.

Applications

  • Boron source & reagent
    Used to introduce boron into organoboron intermediates, catalyst precursors and specialty boron-containing materials.
  • Methyl/alkyl borate reagent & transesterification chemistry
    Employed in syntheses where a volatile borate ester is used as reagent or transient protecting/activating species.
  • Catalyst precursor preparation
    Used in preparation and impregnation of boron-doped catalyst supports and ligand systems.
  • Specialty solvent / low-residue reagent
    Applied where volatility and low non-volatile residue are required for downstream processing or purification.
  • Analytical / R&D reagent
    Supplied for lab-scale method development, small-scale synthesis and analytical standardization.

Technical Parameters

Parameter Value
Appearance Colorless clear liquid
Assay ≥ 99.0
Melting point (°C) −84.5 to −85
Boiling point (°C) 117–118
Refractive index 1.374
Flash point Flash point

Applications

Flame Retardants/Smoke Suppressants

Quick Information

EINECS 205-760-9
Molecular Weight 145.99 g/mol

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