UN 2014 — Hydrogen peroxide, aqueous solution, with not less than 20% but not more than 60% hydrogen peroxide (stabilized as necessary)
Placard: Oxidizer. ERG Guide 140. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2014 is Hydrogen peroxide, aqueous solution, with not less than 20% but not more than 60% hydrogen peroxide (stabilized as necessary), an oxidizing hydrogen peroxide solution assigned to ERG Guide 140. It is not flammable, but it can accelerate burning and decompose if contaminated.
Hazard overview: OXIDIZING hydrogen peroxide solution; accelerates burning and may ignite combustibles. May decompose violently if heated, contaminated or confined. Contact with fuels, organics, metals or reducing agents may cause rapid decomposition or fire.
Response guidance: For a UN 2014 incident, verify the product with shipping papers, container markings, SDS and ERG Guide 140. Establish incident command, isolate the area, stay upwind, prevent incompatible contact, control runoff or dust spread and base entry/fire-control actions on monitoring and local SOP.
Firefighter training notes: Training for UN 2014 should emphasize oxidizer contamination control, organic/fuel incompatibility, decomposition pressure, compatible PPE, water application limits and runoff control. Use ERG 140, SDS and local SOP.
Regulatory context: Hydrogen peroxide, aqueous solution, with not less than 20% but not more than 60% hydrogen peroxide (stabilized as necessary) is regulated as a hazardous material for transportation and emergency response purposes. Storage, workplace exposure, emergency planning, spill reporting, waste handling and environmental requirements vary by exact product, concentration, quantity and jurisdiction. Verify current requirements through shipping papers, SDS, container markings and applicable DOT, OSHA, EPA, NFPA, state or local authority guidance.
Storage & handling: Hydrogen peroxide, aqueous solution, with not less than 20% but not more than 60% hydrogen peroxide (stabilized as necessary) should be stored in compatible vented oxidizer-rated containers away from heat, sunlight, fuels, organics, metals, reducing agents and contamination. Use clean compatible secondary containment and follow SDS temperature limits.
UN 2014 Quick Details
Common Hazards of UN 2014
- OXIDIZING hydrogen peroxide solution; accelerates burning and may ignite combustibles.
- May decompose violently if heated, contaminated or confined.
- Contact with fuels, organics, metals or reducing agents may cause rapid decomposition or fire.
- Liquid and vapor/mist can irritate or burn eyes, skin and respiratory tissue.
- Runoff may create fire, oxygen-release and contamination hazards.
- Containers may rupture or fail when heated or contaminated.
- Although not flammable, it can make surrounding materials burn more intensely.
Chemical Identity & Physical Properties
Clear, colorless liquid with a slightly sharp odor. Solutions are stabilized to prevent decomposition. Concentrations in this range (20-60%) are strong oxidizers.
| Also known as | Hydrogen dioxidePeroxideHydrogen peroxide solutionHydroperoxideAlbone |
| CAS Number | 7722-84-1 |
| Appearance | Clear, colorless liquid with a slightly sharp odor. Solutions are stabilized to prevent decomposition. Concentrations in this range (20-60%) are strong oxidizers. |
| Flash Point | Not applicable (non-flammable oxidizer) |
| Boiling Point | 108C (226F) for 35% solution; varies with concentration |
| Vapor Density | 1.4 (heavier than air) |
| Water Reactivity | Miscible with water; dilution generates heat but is generally safe |
Fireground Response Guidance — UN 2014
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for vapor, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and clothing compatible with oxidizers.
Isolation & Evacuation
First Actions for a UN 2014 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Avoid breathing dust, vapor, fumes, mist or smoke and avoid skin or eye contact.
- Keep fuels, oils, organics, metals, reducing agents and contaminated absorbents away from the oxidizer.
- Do not touch damaged containers or spilled material unless properly trained and wearing appropriate protective equipment.
- Ventilate closed spaces before entering, but only if properly trained, equipped, monitored and authorized by incident command.
- Isolate the spill or release area and expand the perimeter for fire involvement, water reaction, vapor generation, dust spread or unknown product identity.
- Use ERG Guide 140, shipping papers, SDS, air monitoring and incident command for protective actions.
📋 Copy & Share Field Card
UN 2014 — Hydrogen peroxide, aqueous solution, witUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.