PEROXIDE-FORMING CHEMICALS

The following chemicals are severe peroxide hazards and should be disposed of within one year of receiving and within six months of opening: The following are some additional chemicals that are prone to peroxide formation and should not be kept in the lab for extended periods:
   
Acetaldehyde diethyl acetal (acetal) Acrolein
Butadiene Acrylamide
Chloroprene (2-chloro-1,3-butadiene) Acrylic acid
Cumene All aldehydes
Cyclohexene Allyl alcohol
Cyclopentene Allyl amine
Decalin (decahydronaphthalene) Allyl chloride
Diacetylene (butadiene) Allyl esters
Dicyclopentadiene Allyl sulfide
Diethyl ether (ether) Butadiene
Diethylene glycol dimethyl ether (diglyme) Certain organometallics
Diisopropyl ether (isopropyl ether) Cesium metal
Dioxane Cyclic ethers
Divinylacetylene (DVA) Cyclopentadiene
Ethylene glycol dimethyl ether (glyme) Dioxolane
Ethylene glycol ether acetates Isobutane
Ethylene glycol monoethers (cellosolves) Ketones with an alpha hydrogen
Furan Metal alkoxides
Methyl isobutyl ketone Methacrylic acid
Methylacetylene Misc. compounds with allylic structures
Methylcyclopentane Misc. compounds with vinyl group
Potassium amide Rubidium metal
Potassium metal Tetrahydropyran
Sodium amide (sodamide) Vinyl bromide
Styrene Vinyl propionate
Tetrafluoroethylene (TFE)  
Tetrahydrofuran (THF) The tendency of the above organic compounds to
Tetralin (tetrahydronaphthalene) form peroxides decreases according to their
Vinyl acetate structure:
Vinyl chloride  
Vinyl ethers ethers & acetals>olefins>halogenated
Vinylacetylene (MVA) olefins>vinyl compounds > dienes>
Vinylidene chloride (1,1-dichloroethylene) alkynes>alkylbenzenes>isoparaffins> alkenyl
Vinylpyridene esters>secondary alcohols>
  ketones>aldehydes>ureas & amides