Perkadox® AIBN-PD is a solid initiator used in polymerization processes, offering controlled dusting and enhanced dispersion properties for elastomers and thermoplastic polyolefins.

Chemical Name: 2,2′-Azobis(2-methylpropionitrile)

CAS Number: 78-67-1

Chemical Family: Azo Compounds

Synonyms: 2,2′-(1,2-Diazenediyl)bis[2-methylpropanenitrile], 2,2′-Azobis(2-cyanopropane), 2,2′-Azobis(2-methylpropionitrile), 2,2′-Azobis[2-methylpropanenitrile], 2,2′-Azobis[isobutyronitrile], 2,2′-Azodiisobutyronitrile, 2,2′-Dimethyl-2,2′-azodipropionitrile, Azobisisobutyronitrile, Azodiisobutyronitrile, N,N′-Azobis(isobutyronitrile), N,N′-Bis(2-cyano-2-propyl)diazene, α,α′-Azobis(isobutyronitrile), α,α′-Azodiisobutyric acid dinitrile, α,α′-Azodiisobutyronitrile, α,α′-Azoisobutyronitrile

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Applications & Uses

Markets
Applications
Applicable Processes
Product Applications
  • Perkadox® AIBN-PD can be successfully used for bulk, solution, suspension polymerization of a wide variety of monomers, such as styrene, vinyl chloride, vinylidene, acrylonitrile, acrylates and methacrylates.
  • Perkadox® AIBN-PD does not form oxygenated residues and does not cause oxidative degradation of pigmented of dyed polymer systems.
  • For this reason, the color stability or transparent, dyed polymers, such as polymethylmethacrylate, is improved. 2,2’-Azodi(isobutyronitrile) (Perkadox® AIBN-PD) is also the (azo)initiator most commonly employed in radical reactions, especially those using tri-n-butyltin hydride.

Properties

Appearance
White powder
Thermal Stability
ValueUnitsTest Method / Conditions
Control Temperature (Tc)40°C-
Emergency Temperature (Tₑ )45°CThe Heat Accumulation Storage Test
Self- Accelerating Decomposition Temperature50°CThe Heat Accumulation Storage Test
Specifications
ValueUnitsTest Method / Conditions
Color (at 2% solution in acetone)max. 15-Pt - Co
Half-life Data (at 101°C)0.1hr-
Half-life Data (at 64°C)10hr-
Half-life Data (at 82°C)1hr-
Bulk Density291kg/m³-
Iron Contentmax. 7mg/kg-
Insolubility in Acetonemax. 0.1%-
Water Contentmax. 0.5%-
Assay Contentmin. 98.5%-
Molecular Weight164.2--

Regulatory & Compliance

Chemical Inventories

Packaging & Availability

Packaging Information

The standard packaging is a cardboard box for 1 x 15 kg initiator. Both packaging and transport meet the international regulations. For the availability of other packed quantities contact your Nouryon representative. Perkadox® AIBN-PD is classified as self-reactive solid type C; temperature controlled; Division 4. 1; UN 3234.

Storage & Handling

Storage Condition

Due to the relatively unstable nature of azo initiators a loss of quality can be detected over a period of time. To minimize the loss of quality, Nouryon recommends a maximum storage temperature (Ts max. ) for each azo initiator.

Ts max. 25°C (77°F)

Note When stored under the recommended storage conditions, Perkadox® AIBN-PD will remain within the Nouryon specifications for a period of at least 3 months after delivery.