Contents
What is the structure of AIBN?
2,2′-Azobis(2-methylpropionitrile)
| PubChem CID | 6547 |
|---|---|
| Structure | Find Similar Structures |
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C8H12N4 or (CH3)2(CN)CN=NC(CN)(CH3)2 |
| Synonyms | 78-67-1 2,2′-Azobis(2-methylpropionitrile) AIBN Azobisisobutyronitrile 2,2′-Azobisisobutyronitrile More… |
Is AIBN a thermal initiator?
AIBN decomposes on heating between 60 and 80 °C. For temperatures above 90 °C, AIBN is therefore not a suitable initiator due to the high decomposition rate.
Why is AIBN explosive?
The explosion was induced by overheating of the agitator impeller shaft. The overheating was caused by friction from excessively tightened gland packing at a shaft-seal. Then, the heat of decomposition assisted self-accelerated decomposition of AIBN, led to the explosion.
Is AIBN air sensitive?
We concluded that AIBN is more sensitive to the O2. When we used a smaller vessel (150 mL flask for 110 mL solution with AIBN) with careful degassing and sealing the flask, it worked again.
What is the density of AIBN?
1.1 g/cm³
Azobisisobutyronitrile/Density
What is AIBN soluble in?
Azobisisobutyronitrile (abbreviated AIBN) is an organic compound with the formula [(CH3)2C(CN)]2N2. This white powder is soluble in alcohols and common organic solvents but is insoluble in water. It is often used as a foamer in plastics and rubber and as a radical initiator.
How explosive is AIBN?
AIBN is safer to use than benzoyl peroxide (another radical initiator) because the risk of explosion is far less. However, it is still considered as an explosive compound, decomposing above 65 °C. A respirator dust mask, protective gloves and safety glasses are recommended.
What is AIBN used for?
AIBN (Azobisisobutyronitrile) is an organic compound having formula [(CH3)2C(CN)]2N2. It is white powder, soluble in alcohols and common organic solvents but is insoluble in water. It is often used as a foamer in plastics and rubber and as a radical initiator.
Is AIBN water soluble?
Is AIBN toxic?
AIBN is highly toxic. Wear a respirator/dust mask, protective gloves, & safety glasses when handling AIBN. Several water-soluble azo initiators similar to AIBN are manufactured by DuPont and Wako.
Is AIBN a peroxide?
It is often used as a foamer in plastics and rubber and as a radical initiator. As an azo initiator, radicals resulting from AIBN have multiple benefits over common organic peroxides….Azobisisobutyronitrile.
| Names | |
|---|---|
| 3D model (JSmol) | Interactive image |
| Abbreviations | AIBN |
| ChemSpider | 6299 |
| ECHA InfoCard | 100.001.030 |
Is AIBN solid?
This white powder is soluble in alcohols and common organic solvents but is insoluble in water. It is often used as a foamer in plastics and rubber and as a radical initiator….Azobisisobutyronitrile.
| Names | |
|---|---|
| Molar mass | 164.21 g/mol |
| Appearance | white crystals |
| Density | 1.1 g cm−3 |
| Melting point | 103 to 105 °C (217 to 221 °F; 376 to 378 K) |
Which is the correct formula for azobisisobutyronitrile ( AIBN )?
Azobisisobutyronitrile (abbreviated AIBN) is an organic compound with the formula [(CH 3) 2C(CN)] 2N 2. This white powder is soluble in alcohols and common organic solvents but is insoluble in water. It is often used as a foamer in plastics and rubber and as a radical initiator.
What is the mechanism of the reaction of AIBN?
Mechanism. In its most characteristic reaction, AIBN decomposes, eliminating a molecule of nitrogen gas to form two 2-cyanoprop-2-yl radicals: These radicals can initiate free-radical polymerizations and other radical-induced reactions. For instance, a mixture of styrene and maleic anhydride in toluene will react if heated,…
Which is better an AMBN or AIBN initiator?
Our most commonly used initiator is AIBN, but our AMBN provides even better solubility than AIBN. Advantages of AIBN initiators: Azo initiators have many advantages over standard organic peroxides, such as the fact that they form no oxygenated byproducts and provide low yellow discoloration.
What happens when toluene is added to AIBN?
These radicals formed by the decomposition of AIBN can initiate free-radical polymerizations and other radical-induced reactions. For instance, a mixture of styrene and maleic anhydride in toluene will react if heated, forming the copolymer upon addition of AIBN.