☣️ UN 1604 • CLASS 8
UN 1604 — Ethylenediamine
Placard: Corrosive. 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.
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UN 1604 Quick Details
UN 1604
Product name: Ethylenediamine
DOT Class: 8
Placard type: Corrosive
ERG Guide: 132 (check current ERG)
Initial isolation: ERG 132: isolate spill 50m all directions; evacuate 800m downwind if large spill or fire
Common Hazards of UN 1604
- 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
| Also known as | 1,2-DiaminoethaneEDA1,2-EthanediamineEdamine |
| CAS Number | 107-15-3 |
| Appearance | Colorless to yellowish liquid with a strong ammonia-like odor. Hygroscopic and miscible with water. |
| Flash Point | 34°C (93°F) |
| Boiling Point | 117°C (243°F) |
| Vapor Density | 2.07 (heavier than air) |
| Water Reactivity | Miscible with water; generates heat when mixed but no violent reaction |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1604
Extinguishing Media
Alcohol-resistant foam, CO2, dry chemical; water spray for cooling
PPE Requirements
⚠️ Level B minimum; SCBA required; chemical-resistant gloves and suit due to corrosive vapors
Isolation & Evacuation
ERG 132: isolate spill 50m all directions; evacuate 800m downwind if large spill or fire
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 132).
First Actions for a UN 1604 Incident
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- 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 1604 — EthylenediamineHAZMAT RADIO NOTE — UN 1604
Product: Ethylenediamine
Class 8 / Corrosive / ERG 132
PPE: Level B minimum; SCBA required; chemical-resistant gloves and suit due to corrosive vapors
ISOLATION: ERG 132: isolate spill 50m all directions; evacuate 800m downwind if large spill or fire
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 1604 — Ethylenediamine
Class: 8 | Placard: Corrosive | ERG Guide: 132
Appearance: Colorless to yellowish liquid with a strong ammonia-like odor. Hygroscopic and miscible with water.
Water Reactivity: Miscible with water; generates heat when mixed but no violent reaction
Extinguishing: Alcohol-resistant foam, CO2, dry chemical; water spray for cooling
PPE: Level B minimum; SCBA required; chemical-resistant gloves and suit due to corrosive vapors
Isolation: ERG 132: isolate spill 50m all directions; evacuate 800m downwind if large spill or fire
— Key Hazards —
• Flammable/combustible material.
• May be ignited by heat, sparks or flames.
• Vapors may form explosive mixtures with air.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
SOURCE: allfirefighter.com/hazmat/un/1604 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1604 Ethylenediamine Cls8 ERG132 | ERG 132: isolate spill 50m all directions; evacuate 800m downwind if large spill | allfirefighter.com/hazmat/un/1604SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS. Includes link to full page.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/1604
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Frequently Asked Questions about UN 1604
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.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Level B minimum; SCBA required; chemical-resistant gloves and suit due to corrosive vapors
Water reactivity: Miscible with water; generates heat when mixed but no violent reaction. Recommended extinguishing: Alcohol-resistant foam, CO2, dry chemical; water spray for cooling.
ERG Guide 132 recommendation: ERG 132: isolate spill 50m all directions; evacuate 800m downwind if large spill or fire
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 132 and your department SOP/SOG for incident-specific protective actions.
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.