CAS № 97-94-9
EC № 202-620-9
Chemical formula: B(C2H5)3
Mol weight: 98.00
Synonym: Triethylboron

Physical properties:

Colourless transparent liquid.
Boiling point 95 °C.
Density: 0.68 kg/l at 25 °C.
Autoignition temperature: –20 °C.


  1. Radical initiator for hydrostannylation of alkynes.
  2. Reacts with metal enolates to give the enoxytriethylborates, useful in selective alkylation and aldol reactions.
  3. Used with lithium tri-tert-butoxyaluminohydride in the reductive cleavage.
  4. Used in the deoxygenation of primary and secondary alcohols.
  5. A raw material for a wide variety of boron compounds.
  6. Protection OH-groups in organic compounds.
  7. Rapid gasometric determination of OH-groups in alcohols, phenols, diols, sugars and other compound.
  8. Water content determination in crystalline, hydrates of inorganic, complex and organic salts.
  9. Preparative dehydration of salt and sugar hydrates.



Appearance Colourless transparent liquid
Purity 98.0 % min