Triethylborane

Triethylborane (TEB), also called triethylboron, is an organoborane (a compound with a B–C bond). It is a colorless pyrophoric liquid. Its chemical formula is (CH3CH2)3B or (C2H5)3B, abbreviated Et3B. It is soluble in organic solvents tetrahydrofuran and hexane.

Triethylborane
Names
Preferred IUPAC name
Triethylborane
Other names
Triethylborine, triethylboron
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.002.383
EC Number
  • 202-620-9
UNII
  • InChI=1S/C6H15B/c1-4-7(5-2)6-3/h4-6H2,1-3H3 Y
    Key: LALRXNPLTWZJIJ-UHFFFAOYSA-N Y
  • InChI=1/C6H15B/c1-4-7(5-2)6-3/h4-6H2,1-3H3
    Key: LALRXNPLTWZJIJ-UHFFFAOYAU
  • B(CC)(CC)CC
Properties
(CH3CH2)3B
Molar mass 98.00 g/mol
Appearance Colorless liquid
Density 0.677 g/cm3
Melting point −93 °C (−135 °F; 180 K)
Boiling point 95 °C (203 °F; 368 K)
Not applicable; highly reactive
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Spontaneously flammable in air; causes burns
GHS labelling:
Danger
H225, H250, H301, H314, H330, H360
P201, P202, P210, P222, P233, P240, P241, P242, P243, P260, P264, P270, P271, P280, P281, P284, P301+P310, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P320, P321, P330, P363, P370+P378, P403+P233, P403+P235, P405, P422, P501
NFPA 704 (fire diamond)
3
4
4
Flash point < −20 °C (−4 °F; 253 K)
−20 °C (−4 °F; 253 K)
Safety data sheet (SDS) External SDS
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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