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Peroxide Formers
Safe Handling and Storage
Minimize Peroxide Formation
• Keep away from light
• Test for peroxides prior to distillation for Class B
• Purchase with inhibitor for Class C compounds
• Minimize exposure to O2, except in presence of inhibitor
• Keep diethyl ether in steel cans b/c iron is peroxide inhibitor
• Record Date of Receipt• Record Date of Opening
Dispose of Peroxidesin a Timely Fashion
Class A – High Hazard
Class B – Concentration
Peroxides
Class C – Autopolymerizers
3 months 3 months
12 months
12 months
or 24 hours without inhibitor
6 months
AFTER OPENING
AFTER RECEIVING
Common Peroxide Formers
Class A – High Hazard
Class B – Concentration
Peroxides
Class C – Autopolymerizers
Isopropyl Ether
Diethyl EtherTHFIsopropanol
ButadieneStyreneVinyl Chloride
Complete list and more informationcan be found at :
Information on Peroxide-Forming Compounds from Stanford University
submit forIMMEDIATE DISPOSAL
If CRYSTALSare present
in or around container,
For AllPeroxideFormers