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Cumene Hydroperoxide: Air Blown through Cumene at 110 °C
Cumene hydroperoxide is the peroxide that starts the ABS emulsion polymerisation. The process of Armstrong and others (Hercules, US 2,632,773, 1953) simply blows air through hot cumene, with a little sodium carbonate, at 110 °C and 100 psi, and keeps the solution at about 20 % hydroperoxide by feeding fresh cumene and drawing product off. Traces of styrene or of copper, cobalt or manganese spoil it. Organic peroxides can decompose violently: never concentrate or overheat.
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