DOT Hazmat Class 5: Oxidizers & Organic Peroxides
Can intensify fire and accelerate burning—cooling and isolation often critical.
DOT Hazard Class 5 At a Glance
DOT Hazard Class 5 covers Oxidizers and Organic Peroxides. Can intensify fire and accelerate burning—cooling and isolation often critical. Common examples include Hydrogen peroxide solutions, Pool chemicals (varies), Certain fertilizers (varies). Use this guide for placard recognition, hazards, first actions, ERG context, and related UN numbers.
Common Hazards of Class 5 Oxidizers & Organic Peroxides
- Intensifies combustion and fire spread
- Reactivity under heat/contamination
- Potential for oxygen release / decomposition
How to Recognize Class 5 Oxidizers & Organic Peroxides
- Placards indicating Oxidizer/Peroxide
- Unusually intense burning behavior
- Facility storage areas (pool supply, industrial)
First Actions for Class 5 Oxidizers & Organic Peroxides Incidents
Initial priorities for DOT Hazmat Class 5 (Oxidizers & Organic Peroxides) incidents. These are general guidelines — always verify with shipping papers, consult the current ERG, and follow your SOP/SOG.
- Isolate and keep combustibles away
- Cool exposures as directed and safe
- Request Hazmat early
- Consult ERG for protective actions
- Avoid contamination/mixing of products
Critical Don'ts for Class 5 Oxidizers & Organic Peroxides
- Do not mix chemicals or runoff
- Do not store combustibles near oxidizers
- Do not treat as ordinary Class A fire
Common Products & Examples — Class 5 Oxidizers & Organic Peroxides
These are representative examples only. Product-specific hazards vary — always confirm via shipping papers and current ERG.
Common UN Numbers in Class 5 (Oxidizers & Organic Peroxides)
More UN numbers discoverable via the Hazmat Hub. Always consult current ERG + SOP/SOG for operations.