Aged Chemical Hazards
Chemical/Class Hazards Cause of Change New Hazards
Divinyl acetatea
Flammable Explosive
Reacts with air to form peroxides
Explosive
Dioxaneb
Flammable Health
React with air to form peroxides
Severe explosives
Hydrogen peroxidea
Oxidizer Health
Decomposed by heat and light to
hydrogen and oxygen
Flammable
Isopropyl ethera
Flammable Health
Reacts with air to form peroxides
Severe explosive
Perchloric acida
Corrosive Oxidizer
Vapors condense on cool surfaces and react with organic materials to form shock-sensitive explosives (detonation could be caused by raising a hood door)
Explosive
Potassium metala
Pyrophoric Water-reactive when cut
Reacts with air to form peroxides
Explosive when cut
Sodium amidea
Flammable Health
Reacts with air to form peroxides
Explosive
Vinylidene chloridea
Extremely Flammable
Health Reactive
Reacts with air to form peroxides; peroxides initiate polymerization
Explosive
Aldehydesa,b
Flammable Health
Water contamination in product over one year old produces alcohols and acids
Flammable Corrosive
Ethersa,b
Flammable
Reacts with air to form peroxides
Explosive
Ethoxy compoundsa,b
Flammable Various
Reacts with air to form peroxides
Explosive
Acetalb
Flammable Health
Acrylic acidb
Health Reactive Combustible
Reacts with air to form peroxides; peroxides initiate polymerization
Explosive
Tetrafuoroethyleneb
Health Reactive
Reacts with air to form peroxides
Explosive
 
Tetrahydrofuranb Flammable Health Reacts with air to form peroxides Explosive
Tetrahydronaphtaleneb Combustible Reacts with air to form peroxides Explosive
Vinyl acetateb
Flammable Health Reactive
Reacts with air to form peroxides; peroxides initiate polymerization
Explosive
Vinyl chlorideb
Flammable Health
Reacts with air to form peroxides; peroxides initiate polymerization
Explosive
Vinyl ethersb
Flammable Health Reactive
Reacts with air to form peroxides; peroxides initiate polymerization
Explosive
Vinyl pyridineb
Health
Reacts with air to form peroxides; peroxides initiate polymerization
Explosive
 

aDiscard after 3 months
bDiscard after 1 year