HomeProducts

Triethylborane

CAS Number
97-94-9
EC Number
202-620-9
Chemical Formula
C6H15B
Molecular Weight
98.00 g/mol

Description

Triethylborane (CAS 97-94-9 ), commonly referenced in procurement as TEB, is a pyrophoric organoboron compound used as a radical initiator and catalyst in demanding synthesis and polymerization processes. Its reactivity with oxygen makes it a controlled but highly effective trigger for reactions that require precise initiation under low-temperature or inert-atmosphere conditions. In aerospace and defense, TEB is the standard ignition initiator for jet engines and scramjet systems, where reliable ignition at extreme conditions is critical to program qualification. Polymer manufacturers use it to initiate radical polymerization of fluoropolymers and specialty resins, particularly where conventional peroxide initiators fail to perform. Pharmaceutical and biotech synthesis teams employ TEB as a boron source and Lewis acid catalyst in carbon–carbon bond-forming reactions, including hydroboration sequences for chiral intermediate production. It also functions as a co-catalyst with transition metal complexes in Ziegler-Natta and related polymerization systems for polyolefin production across various industrial sectors. Triethylborane is supplied as a liquid, typically in hydrocarbon solvent solutions at concentrations of 1 M in hexane or THF, suited for controlled dispensing in sensitive reactions. Neat material is available for industrial-scale users with appropriate handling infrastructure. Supply is generally positioned at research and high-purity technical grades for global distribution. Contact us for supply of Triethylborane Request Quote

Other Names (Synonyms)

TEB | Borane, triethyl- | Boron triethyl | Boron ethyl | Z3S980Z4P3 | RefChem:191525

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-92.9 °C
Boiling Point95-96 °C
Density0.697 g/cm³ @ Temp: 20 °C
Flash Point1 °F
AppearanceCLEAR COLOURLESS TO LIGHT AMBER SOLUTION
ColorColorless to light amber
FormLiquid
Water SolubilityDecomposes
Vapor Pressure67hPa at 25℃
Refractive Indexn 20/D 1.380

Safety & Handling

Danger
GHS02· FlammableGHS05· CorrosiveGHS06· ToxicGHS08· Health Hazard

Hazard Statements

H225Highly Flammable liquid and vapor
H250Catches fire spontaneously if exposed to air
H301Toxic if swallowed
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H330Fatal if inhaled
H331Toxic if inhaled
H360May damage fertility or the unborn child

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P222Do not allow contact with air.
P231Handle and store contents under inert gas/… .
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P316Get emergency medical help immediately.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P235Store in a well-ventilated place. Keep cool.
P331Rinse mouth. Do NOT induce vomiting.
P334IF ON SKIN: Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29319090
UN Number3399
ADR Class4.3
Packing GroupII
WGK (Germany)2