Triphenylborane
Agent Name
Triphenylborane
CAS Number
960-71-4
Formula
C18-H15-B
Major Category
Metals
Synonyms
Borane, triphenyl-; Borine, triphenyl (6CI); Triphenylborine; Triphenylboron; [ChemIDplus] TBP; [EPA ChAMP: Screening Level Hazard Characterization: Triphenylboron Category - 2009] UN1325
Category
Metalloid Compounds (Boron)
Description
White crystalline solid; [EPA ChAMP: Screening Level Hazard Characterization: Triphenylboron Category - 2009] Off-white odorless crystals; [Alfa Aesar MSDS]
Sources/Uses
A monofunctional Lewis acid; Not currently commercially marketed; Possible applications include olefin polymerization, agrochemicals, metal scavenging, and consumer products (i.e. fuel additives and flame retardants); [EPA ChAMP: Screening Level Hazard Characterization: Triphenylboron Category - 2009]
Comments
Rapidly hydrolyzes; Shipped as the sodium hydroxide adduct in aqueous solution; Corrosive to skin and severely irritating to eyes in rabbits; Not a skin sensitizer in guinea pigs; [EPA ChAMP: Screening Level Hazard Characterization: Triphenylboron Category - 2009] Reproductive toxicity observed in oral study of rats at 10 mg/kg/day; One female failed to conceive, 5 of 9 mated females delivered, and the mean number of pups per litter was significantly reduced; Initial histopathology revealed adverse effects to semen; [EPA - TSCATS] Decomposed by water; A severe eye irritant that may cause eye injury; [Alfa Aesar MSDS] See "Tri-n-butylborane."
Biomedical References
Exposure Assessment
Vapor Pressure
1.19E-05 mm Hg
Lethal Concentration
LC50 (rat) = 73 mg/m3/4hr
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Flammable solid, organic, n.o.s."
Adverse Effects
Reproductive Toxin
Yes
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.