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Hazard Predictions

• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Polymerization hazard: Polymerization reaction may become intense and may cause pressurization

Azo and azides etc. are commonly used free radical initiators for polymerization processes (Personal communication with chemical industry experts). If the unsaturated hydrocarbon has a propensity to undergo radical-initiated polymerization and if the azo/azide etc. generates radicals at a sufficient rate at the conditions of mixing, the results may be problematic.

Azo/azide type initiators for styrene polymerization are described in the literature in many places but an early reference is "Styrene: its polymers, copolymers, and derivatives" (American Chemical Society Monograph series, No. 115. Edited by Ray H. Boundy, Raymond F. Boyer, and Sylvia M. Stoesser. New York, Reinhold, 1952).

Caution should be used before proceeding. Further research of comparable examples in the literature or very small scale, carefully controlled experiments may be needed to fully assess compatibility.