UN 2841 — Di-n-amylamine
Placard: Flammable. ERG Guide 131. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2841 is Di-n-amylamine, a flammable corrosive amine assigned to ERG Guide 131. Vapor flashback, alkaline burns and runoff are key concerns.
Hazard overview: FLAMMABLE and corrosive/toxic amine liquid; vapors may ignite and form explosive mixtures with air. Liquid and vapor can burn eyes, skin and respiratory tissue. Vapors are heavier than air and may travel to ignition sources and flash back.
Response guidance: For UN 2841, isolate the area, eliminate ignition sources and use SCBA. Keep vapors out of drains, cool containers from protection and use foam, dry chemical or CO2 per SDS.
Firefighter training notes: Training for UN 2841 should emphasize exposure routes, SCBA use, vapor/dust monitoring, fire behavior, decontamination, runoff containment and SDS verification. Use ERG 131, SDS and local SOP.
Regulatory context: Di-n-amylamine 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: Di-n-amylamine should be stored in approved flammable-liquid containers with ventilation, secondary containment and separation from heat, ignition sources, oxidizers and incompatible materials.
UN 2841 Quick Details
Common Hazards of UN 2841
- FLAMMABLE and corrosive/toxic amine liquid; vapors may ignite and form explosive mixtures with air.
- Liquid and vapor can burn eyes, skin and respiratory tissue.
- Vapors are heavier than air and may travel to ignition sources and flash back.
- Runoff may be alkaline, corrosive, flammable-contaminated and harmful to waterways.
- Fire may produce nitrogen oxides and irritating/toxic smoke.
- Skin contact and contaminated clothing can extend exposure.
- Containers may rupture or explode when heated.
Chemical Identity & Physical Properties
Clear to pale yellow liquid with an amine-like, fishy odor. Less dense than water.
| Also known as | DiamylamineN-pentylpentan-1-amineN-pentyl-1-pentanamineDipentylamine |
| CAS Number | 2050-92-2 |
| Appearance | Clear to pale yellow liquid with an amine-like, fishy odor. Less dense than water. |
| Flash Point | 51°C (124°F) |
| Boiling Point | 202°C (396°F) |
| Vapor Density | 3.5 (heavier than air) |
| Water Reactivity | No significant reaction; slightly soluble in water |
Fireground Response Guidance — UN 2841
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 2841 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 131, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2841 — Di-n-amylamineUse 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.