☣️ DOT Hazmat Classification
Corrosives
Chemical burns, toxic vapors, and container failure—avoid contact and control runoff.
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DOT CLASS 8
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Common Hazards — Class 8
- Severe skin/eye burns
- Toxic/corrosive vapors in some cases
- Runoff contamination and reactions
How to Recognize Class 8
- Placard 'Corrosive'
- Damaged containers and etching/burning
- Strong irritation and visible damage
First Actions Before Hazmat Team Arrives
Initial priorities for DOT Hazmat Class 8 (Corrosives) incidents. These are general guidelines — always verify with shipping papers, consult the current ERG, and follow your SOP/SOG.
- Isolate, stage upwind, deny entry
- Request Hazmat; coordinate decon and EMS
- Avoid contact and control runoff
- Use PPE per SOP (splash/chemical protection as directed)
- Consult ERG/product info for incompatibilities
What NOT To Do — Class 8
- Do not mix acids and bases
- Do not walk through spills
- Do not use incompatible absorbents without guidance
Common Examples — Class 8 Corrosives
Hydrochloric acidSulfuric acidSodium hydroxide solutionBattery acid
These are representative examples only. Product-specific hazards vary — always confirm via shipping papers and current ERG.
Common UN Numbers in Class 8 (Corrosives)
UN 1052Hydrogen fluoride, anhydrousUN 1604EthylenediamineUN 1715Acetic anhydrideUN 1716Acetyl bromideUN 1718Acid butyl phosphateUN 1719Caustic alkali liquid, n.o.s.UN 1724Allyltrichlorosilane, stabilizedUN 1725Aluminum bromide, anhydrousUN 1726Aluminum chloride, anhydrousUN 1727Ammonium hydrogendifluoride, solidUN 1728AmyltrichlorosilaneUN 1729Anisoyl chlorideUN 1730Antimony pentachloride, liquidUN 1731Antimony pentachloride, solutionUN 1732Antimony pentafluoride
More UN numbers discoverable via the Hazmat Hub. Always consult current ERG + SOP/SOG for operations.
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FAQ — DOT Hazmat Class 8 (Corrosives)
Corrosives can spread contamination, damage infrastructure, and react with other chemicals.
Usually not for first-in crews; follow Hazmat direction and SOP/SOG.
Protect people and responders: isolate, avoid contact, request Hazmat, consult ERG.
Sources: DOT/PHMSA hazard class concepts, NFPA 704 overview, and ERG usage principles. This guide does not reproduce ERG guide text — always consult the current ERG for incident-specific protective actions.