PEROXIDE FORMING COMPOUNDS
CLASS A
Chemicals that can spontaneously form peroxides under normal storage conditions without being exposed to air. These are the most dangerous type of peroxide formers because they have the highest risk of forming explosive peroxides.
CLASS B
Chemicals that can spontaneously form peroxides by prolonged contact with oxygen or with being exposed to air to develop dangerous levels of peroxides. These chemicals are commonly hazardous when concentrated, distilled, or evaporated, as the peroxide crystals that may form are highly explosive.
CLASS C
Chemicals that can readily form highly explosive polymeric peroxides when exposed to air, light, or heat. These materials are particularly hazardous due to their tendency to undergo dangerous polymerization reactions initiated or exacerbated by peroxide formation.
Examples:
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Butadiene
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Isopropyl Ether
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Divinyl Ether
Examples:
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Diethyl Ether
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Tetrahydrofuran (THF)
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Acetaldehyde
Examples:
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Acrylic Acid
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Chlorobutadiene
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Styrene
COMMON PEROXIDE FORMING FUNCTIONAL GROUPS
Common Solvents:
Common Solvents:
