Common Peroxide-Forming Chemicals
List A
Severe Peroxide Hazard on Storage with Exposure to Air.
These chemicals must be stabilized or decontaminated and discarded within
3 months of opening.
Butadiene; Chloroprene; Diisopropyl ether (isopropyl ether)
Divinylacetylene (DVA)
Potassium metal
Potassium amide
Sodium amide (sodamide)
Vinylidene chloride (1,1-dichloroethylene)
List B
Peroxide Hazard on Concentration; Do Not Distill or Evaporate Without First
Testing for the Presence of Peroxides.
Discard or test for peroxides after 6 months.
Acetaldehyde diethyl acetal (acetal)
Cumene (isopropylbenzene)
Cyclohexene
Cyclopentene
Decalin (decahydronaphthalene)
Diacetylene
Dicyclopentadiene
Diethyl ether (ether)
Diethylene glycol dimethyl ether (diglyme)
Dioxane
Ethylene glycol dimethyl ether (glyme)
Ethylene glycol ether acetates
Ethylene glycol monethers (cellosolves)
Furan
Methylacetylene
Methylcyclopentane
Methyl isobutyl ketone
Tetrahydrofuran (THF)
Tetralin (tetrahydronaphthalene)
Vinyl ethers
List C
Hazard of Rapid Polymerization Initiated by Internally Formed Peroxides
a) Normal liquids; Discard or test for peroxides after 6 months
Chloroprene (2-chloro-1,3-butadiene_
Styrene
Vinyl acetate
Vinylpyridine
b) Normal Gases; Discard after 12 months
Butadiene
Tetrafluoroethylene (TFE)
Vinylacetylene (MVA)
Vinyl chloride
For a review on peroxide chemistry and peroxide-forming compounds, click here