UN 2752 — Epoxy-ethoxypropane
Placard: Flammable. ERG Guide 127. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2752 is Epoxy-ethoxypropane, a highly flammable epoxide ether assigned to ERG Guide 127. Flashback, vapor exposure and storage stability are key concerns.
Hazard overview: HIGHLY FLAMMABLE epoxide/ether liquid; vapors may ignite easily and form explosive mixtures with air. Vapors are heavier than air and may travel to ignition sources and flash back. Vapor explosion hazard exists in drains, sewers, basements and confined spaces.
Response guidance: For UN 2752, isolate the area, eliminate ignition sources and use SCBA. Keep vapors out of drains, cool containers from protection and contain toxic runoff using SDS and ERG 127.
Firefighter training notes: Training for UN 2752 should emphasize vapor travel, toxic exposure routes, SCBA use, fire behavior, decontamination, runoff containment and SDS verification. Use ERG 127, SDS and local SOP.
Regulatory context: Epoxy-ethoxypropane is regulated as a hazardous material for transport and emergency response. Storage, exposure, spill reporting, waste and fire-code duties depend on quantity, concentration and jurisdiction; verify shipping papers, SDS and local authority requirements.
Storage & handling: Epoxy-ethoxypropane should be stored in approved flammable-liquid containers with ventilation, bonding/grounding where required, spill containment and separation from heat, ignition sources and oxidizers.
UN 2752 Quick Details
Common Hazards of UN 2752
- HIGHLY FLAMMABLE epoxide/ether liquid; vapors may ignite easily and form explosive mixtures with air.
- Vapors are heavier than air and may travel to ignition sources and flash back.
- Vapor explosion hazard exists in drains, sewers, basements and confined spaces.
- Epoxide vapor or liquid can irritate eyes, skin and respiratory tract and may sensitize some exposed people.
- Some epoxide ethers may polymerize or degrade under heat/contamination; verify inhibitor/storage status.
- Runoff to sewers may create fire or explosion hazards.
- Containers may rupture or explode when heated.
Chemical Identity & Physical Properties
Clear, colorless liquid with a characteristic irritating odor. Slightly less dense than water. Volatile at room temperature.
| Also known as | Ethyl glycidyl etherEGEGlycidyl ethyl ether3-Ethoxy-1,2-epoxypropane2-(Ethoxymethyl)oxirane |
| CAS Number | 4016-11-9 |
| Appearance | Clear, colorless liquid with a characteristic irritating odor. Slightly less dense than water. Volatile at room temperature. |
| Flash Point | -11°C (12°F) |
| Boiling Point | 127-130°C (261-266°F) |
| Vapor Density | 3.5 (heavier than air) |
| Water Reactivity | No significant reaction; slightly soluble in water (approximately 3-5% by weight) |
Fireground Response Guidance — UN 2752
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for vapor, dust, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 2752 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream.
- Eliminate ignition sources if this can be done safely.
- Avoid breathing vapor, dust, mist, smoke or fumes and avoid skin or eye contact.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Prevent contaminated liquid, dust, runoff and decontamination waste from spreading.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 127, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2752 — Epoxy-ethoxypropaneUse 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.