Trigonox® 22-E50 is an initiator (50% active ingredient in mineral oil) for (co)polymerization of styrene,acrylonitrile acrylates and methacrylates.

| Active oxygen | 6.02-6.27 % |
| Appearance | Clear liquid |
| Assay | 49.0-51.0 % |
| Color | 30 Pt-Co / APHA max. |
| Hydroperoxides as TBHP | 0.099 % |
| Density, 20 °C | 0.900 g/cm³ |
| Viscosity, 20 °C | 35 mPa.s |
Polymerization of styrene: Trigonox® 22-E50 can be used for the bulk polymerization of styrene in the temperature range between 90 and 120°C. Other applications: Trigonox® 22-E50 can also be used for the (co)polymerization of styrene, acrylonitrile, acrylates and methacrylates in the temperature range between 95°C and 125°C.
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