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2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1

  • 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1
  • 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1
  • 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1
  • 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1
  • 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1

2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1

Effective Radical Initiator: AIBN is widely used as a radical initiator in vinyl polymerizations and other chemical reactions.


Versatile Solubility: It is soluble in alcohols and many common organic solvents, allowing flexible use in various formulations.


Foaming and Blowing Agent: AIBN functions effectively as a foamer and blowing agent in plastics and rubber production.


High Reactivity for Industrial Applications: Its ability to ignite readily and burn persistently makes it suitable for catalytic and polymerization processes.

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product description

Product Description of 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1

Azobisisobutyronitrile (AIBN, CAS 78-67-1) is an organic compound presented as a white powder. It dissolves in alcohols and most common organic solvents but is insoluble in water, with a higher density than water. Moderately toxic by ingestion, AIBN is highly flammable, easily ignited by sparks or open flames and burns fiercely, releasing toxic nitrogen oxides during combustion. It serves as a common radical initiator for vinyl polymerization and a blowing agent for plastics and rubber, widely used in catalysis and polymer material manufacturing.


Product Application of 2,2'-Azobis(2-methylpropionitrile) CAS#78-67-1

2,2'-Azobis(2-methylpropionitrile) (AIBN) is a prevalent radical polymerization initiator. It undergoes homolytic cleavage to form high-activity free radicals. As the most widely used azo initiator, it features stable decomposition, generates uniform free radicals, and causes little induced decomposition, making it ideal for free radical polymerization kinetics research.

Product Information

Parameters


Melting point102-104 °C (dec.)(lit.)
Boiling point281.68°C (rough estimate)
density1.11
vapor pressure0.81Pa at 24.85℃
refractive indexn20/D1.495
Fp4℃
storage temp.2-8°C
solubilityChloroform (Slightly), Methanol (Slightly)
formSolid
colorCrystals from EtOH
Odorodorless
Water SolubilityInsoluble
Merck13920
BRN1708400
Stability:Stability Flammable solid. Shock sensitive. Thermally unstable. May be explosive in combination with acetone or heptane. Incompatible with oxidizing agents.
InChIKeyOZAIFHULBGXAKX-VAWYXSNFSA-N
LogP1.1 at 25℃
CAS DataBase Reference78-67-1(CAS DataBase Reference)
NIST Chemistry Reference2,2'-Azo-bis-isobutyronitrile(78-67-1)
EPA Substance Registry SystemAzobis(isobutyronitrile) (78-67-1)


Safety Information


Hazard CodesE,Xn,F,Xi
Risk Statements2-11-20/22-52/53-67-65-48/20-38-63-66-36
Safety Statements39-41-47-61-62-36/37-16-26
RIDADRUN 3234 4.1
WGK Germany2
RTECSUG0800000
F4.4
HazardClass4.1
PackingGroupII
HS Code29269090
Hazardous Substances Data78-67-1(Hazardous Substances Data)
ToxicityLDLo orl-rat: 670 mg/kg 34ZIAG 0,117,69


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