☣️ UN 1032 • CLASS 2
UN 1032 — Dimethylamine, anhydrous
Placard: Flammable Gas. ERG Guide 118. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
🚒☣️
⚠️ 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 1032 Quick Details
UN 1032
Product name: Dimethylamine, anhydrous
DOT Class: 2
Placard type: Flammable Gas
ERG Guide: 118 (check current ERG)
Initial isolation: ERG 118: isolate spill 100m all directions; evacuate 800m downwind if large spill; 1600m if tank fire
Common Hazards of UN 1032
- EXTREMELY FLAMMABLE.
- May be ignited by heat, sparks or flames.
- May form explosive mixtures with air.
- Vapors from liquefied gas are initially heavier than air and spread along ground.
- Vapors may travel to source of ignition and flash back.
- Some of these materials may react violently with water.
- Cylinders exposed to fire may vent and release flammable gas through pressure relief devices.
- Containers may explode when heated.
Chemical Identity & Physical Properties
| Also known as | DMAN-MethylmethanamineDimethylamine solutionMethanamine N-methyl |
| CAS Number | 124-40-3 |
| Appearance | Colorless compressed liquefied gas with a strong fishy or ammonia-like odor. Shipped as a liquefied compressed gas under pressure. |
| Flash Point | -18C (0F) |
| Boiling Point | 7C (45F) |
| Vapor Density | 1.6 (heavier than air) |
| Water Reactivity | Soluble in water forming alkaline solution; no violent reaction but releases heat |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1032
Extinguishing Media
Water fog, dry chemical, CO2; avoid water jets that may spread fire
PPE Requirements
⚠️ Level B minimum with SCBA; chemical-resistant gloves and clothing; protect against cold liquid contact causing frostbite
Isolation & Evacuation
ERG 118: isolate spill 100m all directions; evacuate 800m downwind if large spill; 1600m if tank fire
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 118).
First Actions for a UN 1032 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.
- Many gases are heavier than air and will spread along the ground and collect in low or confined areas
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area for at least 100 meters (330 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 1032 — Dimethylamine, anhydrousHAZMAT RADIO NOTE — UN 1032
Product: Dimethylamine, anhydrous
Class 2 / Flammable Gas / ERG 118
PPE: Level B minimum with SCBA; chemical-resistant gloves and clothing; protect against cold liquid contact causing frostbite
ISOLATION: ERG 118: isolate spill 100m all directions; evacuate 800m downwind if large spill; 1600m if tank 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 1032 — Dimethylamine, anhydrous
Class: 2 | Placard: Flammable Gas | ERG Guide: 118
Appearance: Colorless compressed liquefied gas with a strong fishy or ammonia-like odor. Shipped as a liquefied compressed gas under pressure.
Water Reactivity: Soluble in water forming alkaline solution; no violent reaction but releases heat
Extinguishing: Water fog, dry chemical, CO2; avoid water jets that may spread fire
PPE: Level B minimum with SCBA; chemical-resistant gloves and clothing; protect against cold liquid contact causing frostbite
Isolation: ERG 118: isolate spill 100m all directions; evacuate 800m downwind if large spill; 1600m if tank fire
— Key Hazards —
• EXTREMELY FLAMMABLE.
• May be ignited by heat, sparks or flames.
• 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.
• Many gases are heavier than air and will spread along the ground and collect in low or confined areas
SOURCE: allfirefighter.com/hazmat/un/1032 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1032 Dimethylamine, anhydrous Cls2 ERG118 | allfirefighter.com/hazmat/un/1032SMS / 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/1032
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Frequently Asked Questions about UN 1032
EXTREMELY FLAMMABLE. May be ignited by heat, sparks or flames. May form explosive mixtures with air. Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release flammable gas through pressure relief devices. Containers may explode when heated.
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 with SCBA; chemical-resistant gloves and clothing; protect against cold liquid contact causing frostbite
Water reactivity: Soluble in water forming alkaline solution; no violent reaction but releases heat. Recommended extinguishing: Water fog, dry chemical, CO2; avoid water jets that may spread fire.
ERG Guide 118 recommendation: ERG 118: isolate spill 100m all directions; evacuate 800m downwind if large spill; 1600m if tank fire
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 118 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.