Triethylboron
Agent Name
Triethylboron
CAS Number
97-94-9
Formula
C6-H15-B
Major Category
Metals
Synonyms
Borane, triethyl-; Boron ethyl; Boron triethyl; Triethylborane; Triethylborine; [ChemIDplus] UN2845
Category
Metalloid Compounds (Boron)
Description
Colorless liquid; [Merck Index]
Sources/Uses
Used as a fuel additive, fuel igniter, polymerization catalyst, and intermediate; [HSDB] Used in organic syntheses (radical initiator and blocking agent); [Merck Index]
Comments
Highly irritating; Animals exposed to high inhalation dose have lung irritation and convulsions; Oral LD50 (rat) = 235 mg/kg; ". . . would decompose before occupational exposure can occur." [HSDB] Spontaneously flammable; [Merck Index] Corrosive to skin and eyes; [eChemPortal: ERMA] The trialkylborons are not soluble nor reactive in water; Toxic to rats at nonpyrophoric concentrations; [Ullmann] Pyrophoric; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; [MSDSonline] See "Tri-n-butylborane."
Biomedical References
Exposure Assessment
Vapor Pressure
53 mm Hg
Lethal Concentration
LC50 (rat) = 700 ppm/4h
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Pyrophoric liquid, organic, n.o.s."
NFPA
may ignite at ambient temp
Adverse Effects
Toxic Pneumonitis
Yes
Neurotoxin
Other CNS neurotoxin
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: