☣️ UN 1170 • CLASS 3
Ethyl alcohol, solution
Placard: Flammable. 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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Quick details
UN 1170
Class: 3
Placard type: Flammable
ERG: Guide 127 (check current ERG)
Isolation: ERG 127: Initially isolate spill 50m all directions; for large spill isolate 150m, evacuate 800m downwind if fire
Chemical & Response Details
| Also known as | EthanolEthyl alcoholGrain alcoholAlcoholSpirits of wineEtOH |
| CAS Number | 64-17-5 |
| Appearance | Clear, colorless liquid with a characteristic sweet, wine-like odor. Volatile and miscible with water in all proportions. |
| Flash Point | 13°C (55°F) closed cup |
| Boiling Point | 78°C (172°F) |
| Vapor Density | 1.6 (heavier than air) |
| Water Reactivity | No significant reaction; completely miscible with water |
| Extinguishing | Alcohol-resistant (AR-AFFF) foam required; CO2, dry chemical also effective |
| PPE | ⚠️ Level B minimum for spill response; SCBA and chemical-resistant suit for fire or confined space |
| Isolation | ERG 127: Initially isolate spill 50m all directions; for large spill isolate 150m, evacuate 800m downwind if fire |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- HIGHLY FLAMMABLE: Will be easily 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.
- Containers may explode when heated.
First actions (field-minded)
- 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.
- Consider initial downwind evacuation for at least 300 meters (1000 feet).
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UN 1170 — Ethyl alcohol, solution HAZMAT RADIO NOTE — UN 1170
Product: Ethyl alcohol, solution
Class 3 / Flammable / ERG 127
PPE: Level B minimum for spill response; SCBA and chemical-resistant suit for fire or confined space
ISOLATION: ERG 127: Initially isolate spill 50m all directions; for large spill isolate 150m, evacuate 800m downwind if 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 1170 — Ethyl alcohol, solution
Class: 3 | Placard: Flammable | ERG Guide: 127
Appearance: Clear, colorless liquid with a characteristic sweet, wine-like odor. Volatile and miscible with water in all proportions.
Water Reactivity: No significant reaction; completely miscible with water
Extinguishing: Alcohol-resistant (AR-AFFF) foam required; CO2, dry chemical also effective
PPE: Level B minimum for spill response; SCBA and chemical-resistant suit for fire or confined space
Isolation: ERG 127: Initially isolate spill 50m all directions; for large spill isolate 150m, evacuate 800m downwind if fire
— Key Hazards —
• HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
• Vapors may form explosive mixtures with air.
• Vapors may travel to source of ignition and flash back.
— 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/1170 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1170 Ethyl alcohol, solution Cls3 ERG127 | allfirefighter.com/hazmat/un/1170SMS / 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/1170
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FAQ
HIGHLY FLAMMABLE: Will be easily 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. 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 for spill response; SCBA and chemical-resistant suit for fire or confined space
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 127 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.