Classification List of Peroxide Forming Chemicals

Spontaneously decompose and become explosive with exposure to air without concentration.
  • Butadiene (liquid monomer)

  • Isopropyl ether

  • Sodium amide (sodamide)

  • Chloroprene (liquid monomer)

  • Potassium amide

  • Tetrafluoroethylene (liquid monomer)

  • Divinyl etherPotassium metal

  • Vinylidene chloride

Require external energy for spontaneous decomposition. Form explosive peroxides when distilled, evaporated or otherwise concentrated.
  • Acetal

  • Diethylene glycol dimethyl ether (diglyme)

  • 4-Methyl-2-pentanolAcetaldehyde

  • Diethyl ether (ether)

  • 2-PentanolBenzyl alcohol

  • Dioxanes

  • 4-Penten-1-ol2-Butanol

  • Ethylene glycol ether acetates (glyme)

  • 1-PhenylethanolCumene

  • Furan

  • 2-PhenylethanolCyclohexanol4-Heptanol

  • Tetrahydrofuran (THF)

  • Cyclohexene

  • 2-Hexanol

  • Tetrahydronaphthalene (tetralin)

  • 2-Cyclohexen-1-ol

  • Methylacetylene (gas)

  • Vinyl ethers

  • Decahydronaphthalene (decalin)

  • 3-Methyl-1-butanolOther secondary alcohols

  • Diacetylene (butadine, gas)

  • Methyl cyclopentane

  • Dicyclopentadiene

  • Methyl isobutyl ketone

Highly reactive and can auto-polymerize as a result of internal peroxide accumulation. The peroxides formed in these reactions are extremely shock- and heat-sensitive.
  • Acrylic acid

  • Chlorotrifluoroethylene (gas)

  • Vinylacetylene (gas)

  • Acrylonitrile

  • Methyl methacrylate

  • Vinyladiene chloride

  • Butadiene (gas)

  • StyreneVinyl chloride (gas)

  • Chlorobutadiene

  • Tetrafluoroethylene (gas)

  • Vinyl pyridine

  • Chloroprene

  • Vinyl acetate

May form peroxides but cannot be clearly categorized in Class A, B, or C.
  • Acrolein

  • p-Chlorophenetole

  • 4,5-Hexadien-2-yn-1-ol

  • Allyl ether

  • Cyclooctene

  • n-Hexyl ether

  • Allyl ethyl ether

  • Cyclopropyl methyl ether

  • o.p-Iodophenetole

  • Allyl phenyl ether

  • Diallyl ether

  • Isoamyl benzyl ether

  • p-(n-Amyloxy)benzoyl chloride

  • p-Di-n-butoxybenzeneIsoamyl ether

  • n-Amyl ether

  • 1,2-Dibenzyloxyethane

  • Isobutyl vinyl ether

  • Benzyl n-butyl ether

  • p-Dibenzyloxybenzene

  • Isophorone

  • Benzyl ether

  • 1,2-Dichloroethyl ethyl ether

  • b-Isopropoxypropionitrile

  • Benzyl ethyl ether

  • 2,4-Dichlorophenetole

  • Isopropyl-2,4,5-trichlorophenoxy acetate

  • Benzyl methyl ether

  • Diethoxymethanen-Methylphenetole

  • Benzyl-1-naphthyl ether

  • 2,2-Diethoxypropane

  • 2-Methyltetrahydrofuran

  • 1,2-Bis(2-chloroethoxyl)ethane

  • Diethyl ethoxymethylenemalonate

  • 3-Methoxy-1-butyl acetate

  • Bis(2-ethoxyethyl)ether

  • Diethyl fumarate

  • 2-Methoxyethanol

  • Bis(2-(methoxyethoxy)ethyl) ether

  • Diethyl acetal

  • 2-Methoxyethyl acetate

  • Bis(2-chloroethyl) ether

  • Diethylketene

  • 3-Methoxybutyl acetate

  • Bis(2-ethoxyethyl) adipate

  • Diethoxybenzene (m-,o-,p-)

  • 2-Methoxyethyl vinyl ether

  • Bis(2-methoxyethyl) carbonate

  • 1,2-Diethoxyethane

  • Methoxy-1,3,5,7-cyclooctatetraene

  • Bis(2-methoxyethyl) ether

  • Dimethoxymethane

  • b-Methoxypropionitrile

  • Bis(2-methoxyethyl) phthalate

  • 1,1-Dimethoxyethane

  • m-Nitrophenetole

  • Bis(2-methoxymethyl) adipate

  • Di(1-propynl) ether

  • 1-Octene

  • Bis(2-n-butoxyethyl) phthalate

  • Di(2-propynl) ether

  • Oxybis(2-ethyl acetate)

  • Bis(2-phenoxyethyl) ether

  • Di-n-propoxymethane

  • Oxybis(2-ethyl benzoate)

  • Bis(4-chlorobutyl) ether

  • 1,2-Epoxy-3-isopropoxypropane

  • b,b-Oxydipropionitrile

  • Bis(chloromethyl) ether

  • 1,2-Epoxy-3-phenoxypropane

  • 1-Pentene

  • 2-Bromomethyl ethyl ether

  • p-Ethoxyacetophenone

  • Phenoxyacetyl chloride

  • beta-Bromophenetole

  • 1-(2-Ethoxyethoxy)ethyl acetate

  • a-Phenoxypropionyl chloride

  • o-Bromophenetole

  • 2-Ethoxyethyl acetate

  • Phenyl-o-propyl ether

  • p-Bromophenetole

  • (2-Ethoxyethyl)-a-benzoyl benzoate

  • p-Phenylphenetone

  • 3-Bromopropyl phenyl ether

  • 1-Ethoxynaphthalenen-Propyl ether

  • tert-Butyl methyl ether

  • o,p-Ethoxyphenyl isocyanate

  • n-Propyl isopropyl ether

  • n-Butyl phenyl ether

  • 1-Ethoxy-2-propyne

  • Sodium 8-11-14-eicosatetraenoate

  • n-Butyl vinyl ether

  • 3-Ethoxypropionitrile

  • Sodium ethoxyacetylide

  • Chloroacetaldehyde diethylacetal

  • 2-Ethylacrylaldehyde oxime

  • Tetrahydropyran

  • 2-Chlorobutadiene

  • 2-Ethylbutanol

  • Triethylene glycol diacetate

  • 1-(2-Chloroethoxy)-2-phenoxyethane

  • Ethyl-b-ethoxypropionate

  • Triethylene glycol dipropionate

  • Chloroethylene

  • Ethylene glycol monomethyl ether

  • 1,3,3-Trimethoxypropene

  • Chloromethyl methyl ether

  • 2-Ethylhexanal

  • 1,1,2,3-Tetrachloro-1,3-butadiene

  • beta-Chlorophenetole

  • Ethyl vinyl ether

  • 4-Vinyl cyclohexene

  • o-Chlorophenol

  • 2,5-Hexadiyn-1-ol

  • Vinylene carbonate