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V-50 Azo Initiator

V-50 Azo Initiator


  • water-soluble cationic azo initiator
  • 10 hour half-life decomposition temperatur, 56°C(in water)
  • used for the polymerization of polymer coagulant and superabsorbent polymer

Chemical Name


CAS NO. 2997-92-4
Molecular weight =271.19



Appearance almost white granule
Melting point 160-169°C(decomposition)
Activation energy 1.24X105 J/mol
10 hour half-life decomposition temperature 56°C(in water)
Solubility freely soluble in water (23.2 w%, 20°C)
insoluble in toluene

Packaging and Storage Condition

  • 5kgX4 , 2.5kgX2
  • Keep under 30°C

Related regulations and Safety data

TSCA inventory listed
EINECS No. 221-070-0
Law concerning the Examination and Regulation of Manufacture, etc. of Chemical Substances existing chemical substances 2-2885
Occupational Health and Safety Law Official announcement chemical substance
Mutation data Ames test(five Ames strains); Negative
Oral toxicity data (LD50) rat 410mg/kg
Irritation data

rabbit skin irritancy mild
primary skin irritation test 0.09