Oxidising agents and organic peroxides are identified by the presence of oxygen in the substance (or in one or more of the substances in a mixture) in such a way that it may be readily liberated to take part in chemical reactions. There are two distinct types.

  • Oxidising agents are substances which are not in themselves combustible but which may generally cause, or contribute to, the combustion of other materials by yielding oxygen.

  • Organic peroxides are organic materials which contain the bivalent -O-O- structure. They may be considered a derivative of hydrogen peroxide where one or both hydrogen atoms have been replaced by organic radicals (eg R-O-O-H or R1-O-O-R2).

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