☣️ UN 1296 • CLASS 3
UN 1296 — Triethylamine
Placard: Flammable. ERG Guide 132. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ This page is a quick-reference aid. For real incidents: stage upwind, isolate, deny entry, request Hazmat early, and consult the current ERG + SOP/SOG.
Triethylamine is a highly volatile and corrosive substance that requires immediate attention in emergency situations. It is essential to follow proper procedures to prevent exposure and minimize damage.
Hazard overview: Triethylamine is a flammable and combustible material that may be ignited by heat, sparks, or flames, and is highly corrosive to skin and eyes.
Response guidance: In case of fire, use alcohol-resistant foam, CO2, or dry chemical to extinguish the flames, and evacuate the immediate area if the fire involves containers.
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UN 1296 Quick Details
UN 1296
Product name: Triethylamine
DOT Class: 3
Placard type: Flammable
ERG Guide: 132 (check current ERG)
Initial isolation: ERG 132: isolate spill 50m all directions; for large spill isolate 800m downwind; evacuate immediate area if fire involves containers
Common Hazards of UN 1296
- Flammable/combustible material.
- May be ignited by heat, sparks or flames.
- Vapors may form explosive mixtures with air.
- Vapors may travel to source of ignition and flash back.
- Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas
- Vapor explosion hazard indoors, outdoors or in sewers.
- Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
- Runoff to sewer may create fire or explosion hazard.
Chemical Identity & Physical Properties
Triethylamine is a colorless liquid with a strong ammonia-like or fishy odor, and is less dense than water and miscible with most organic solvents.
| Also known as | TEAN,N-DiethylethanamineEthanamine N,N-diethyl-(Diethylamino)ethaneTEN |
| CAS Number | 121-44-8 |
| Appearance | Colorless liquid with a strong ammonia-like or fishy odor. Less dense than water and miscible with most organic solvents. |
| Flash Point | -7C (20F) |
| Boiling Point | 89C (192F) |
| Vapor Density | 3.5 (heavier than air) |
| Water Reactivity | Soluble in water with mild exothermic reaction; forms alkaline solution but no violent reaction |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1296
Extinguishing Media
Alcohol-resistant foam, CO2, dry chemical; water spray for cooling only
PPE Requirements
⚠️ Level B minimum with SCBA; chemical-resistant suit and gloves required; highly corrosive to skin and eyes
Level B minimum with SCBA is required, along with a chemical-resistant suit and gloves, and highly corrosive to skin and eyes.
Isolation & Evacuation
ERG 132: isolate spill 50m all directions; for large spill isolate 800m downwind; evacuate immediate area if fire involves containers
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 132).
First Actions for a UN 1296 Incident
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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📋 Copy & Share Field Card
UN 1296 — TriethylamineHAZMAT RADIO NOTE — UN 1296
Product: Triethylamine
Class 3 / Flammable / ERG 132
PPE: Level B minimum with SCBA; chemical-resistant suit and gloves required; highly corrosive to skin and eyes
ISOLATION: ERG 132: isolate spill 50m all directions; for large spill isolate 800m downwind; evacuate immediate area if fire involves containers
ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO
Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
=== IC HAZMAT BRIEFING ===
UN 1296 — Triethylamine
Class: 3 | Placard: Flammable | ERG Guide: 132
Appearance: Colorless liquid with a strong ammonia-like or fishy odor. Less dense than water and miscible with most organic solvents.
Water Reactivity: Soluble in water with mild exothermic reaction; forms alkaline solution but no violent reaction
Extinguishing: Alcohol-resistant foam, CO2, dry chemical; water spray for cooling only
PPE: Level B minimum with SCBA; chemical-resistant suit and gloves required; highly corrosive to skin and eyes
Isolation: ERG 132: isolate spill 50m all directions; for large spill isolate 800m downwind; evacuate immediate area if fire involves containers
— Key Hazards —
• Flammable/combustible material.
• May be ignited by heat, sparks or flames.
• Vapors may form explosive mixtures with air.
— First Actions —
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
• Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
SOURCE: allfirefighter.com/hazmat/un/triethylamine-un-1296 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN1296 Triethylamine Cls3 ERG132 | allfirefighter.com/hazmat/un/triethylamine-un-1296SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/triethylamine-un-1296
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Frequently Asked Questions about UN 1296
Yes, Triethylamine is a flammable and combustible material that may be ignited by heat, sparks, or flames.
Use alcohol-resistant foam, CO2, or dry chemical to extinguish the flames, and evacuate the immediate area if the fire involves containers.
Yes, Triethylamine is highly corrosive to skin and eyes, and requires proper protective gear.
Sources (high level): DOT/PHMSA marking & class concepts + ERG usage principles.
This page does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.