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VA-044

VA-044

925-41020

Packaging Size: 20 kg

2,2'-[Azobis(1-methylethyliden)]bis[4,5-dihydro-1H-imidazoldihydrochloride

CAS No.: 27776-21-2

VA-044 is a non-nitrile azo initiator having a low decomposition temperature. It is soluble in... more

Product information

VA-044 is a non-nitrile azo initiator having a low decomposition temperature. It is soluble in water or methanol and has a 10 hour half-life decomposition temperature of 44° C./p>

Chemical Name

2,2'-[Azobis(1-methylethyliden)]bis[4,5-dihydro-1H-imidazoldihydrochloride

CAS No.: 27776-21-2

Molecular weight: 286.8 g/mol

Physical characteristics

Appearance Pale yellow crystals or crystalline powder
Melting/freezing point 188-193° C
10 hour half-time decomposition temperature 44° C in water
Activation energy 108.2 KJ/mol K
Frequency factor (ln A) 30.19
Solubility

Freely soluble in water
Slightly soluble in methanol and ethanol
Insoluble in acetone and toluene

Self-accelerating decomposition temperature (SADT) 140° C

Main Applications

  • Acrylic emulsion, adhesives and emulsion polymerization
  • Finishing agents for textile and wool
  • Flocculants, dispersions and resists
  • Super absorbent polymers
  • Water and oil repellents

Regulations

  • EINECS No.: 248-655-3
  • REACH: 01-2120764032-64-0000

Storage

Store under 40°C. Keep away from sources of ignition. Protect against heat and humidity. Keep only in original container.

Safety Information

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Health Hazard
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Flammable

Literature

For more information and the latest publications please visit the Mediacenter.

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