☣️ UN 3444 • CLASS 6
UN 3444 — Nicotine hydrochloride, solid
Placard: Toxic. ERG Guide 151. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
🚒☣️
⚠️ Verification required:
Broad or variable material category; verify exact product, SDS and shipping papers.
⚠️ 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.
UN 3444 Nicotine hydrochloride, solid is assigned to ERG Guide 151. The exact risk depends on the shipment form, concentration and SDS, but responders should verify shipping papers before committing crews.
Hazard overview: Primary hazards for UN 3444 include: Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.; Avoid any skin contact.; Fire may produce irritating, corrosive and/or toxic gases. Control ignition sources, avoid direct contact and keep personnel upwind.
Response guidance: For a UN 3444 incident, isolate the area, deny entry, stay upwind and use ERG Guide 151 with the shipping papers or SDS. Use compatible extinguishing media only and prevent contaminated runoff from spreading.
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UN 3444 Quick Details
UN 3444
Product name: Nicotine hydrochloride, solid
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: Isolate spill area immediate 25m in all directions. For large spill, isolate 50m and evacuate downwind 300m. Avoid contact with liquid or solid.
Common Hazards of UN 3444
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- Avoid any skin contact.
- Fire may produce irritating, corrosive and/or toxic gases.
- Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental contamination.
- Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive.
- Containers may explode when heated.
- Runoff may pollute waterways.
Chemical Identity & Physical Properties
UN 3444 is described as: White to off-white or light tan crystalline solid. Odorless to faint tobacco-like odor. Hygroscopic (absorbs moisture from air).
| Also known as | Nicotine HClNicotinium chloride3-(1-Methylpyrrolidin-2-yl)pyridine hydrochlorideNicotine monohydrochloride |
| CAS Number | 2820-51-1 |
| Appearance | White to off-white or light tan crystalline solid. Odorless to faint tobacco-like odor. Hygroscopic (absorbs moisture from air). |
| Flash Point | Not applicable (solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Soluble in water, no violent reaction. Aqueous solutions are acidic. |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3444
Extinguishing Media
Water spray, dry chemical, CO2, or foam suitable for ordinary combustibles
PPE Requirements
⚠️ Level B minimum required. SCBA with full facepiece in positive pressure mode. Chemical-resistant gloves (nitrile, neoprene) and suit. Extreme skin absorption hazard - prevent any contact.
PPE guidance for UN 3444: Level B minimum required. SCBA with full facepiece in positive pressure mode. Chemical-resistant gloves (nitrile, neoprene) and suit. Extreme skin absorption hazard - prevent any contact.
Isolation & Evacuation
ERG 151: Isolate spill area immediate 25m in all directions. For large spill, isolate 50m and evacuate downwind 300m. Avoid contact with liquid or solid.
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 3444 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters.
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials, increase the immediate precautionary distance in the downwind direction as conditions require.
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UN 3444 — Nicotine hydrochloride, solidHAZMAT RADIO NOTE — UN 3444
Product: Nicotine hydrochloride, solid
Class 6 / Toxic / ERG 151
PPE: Level B minimum required. SCBA with full facepiece in positive pressure mode. Chemical-resistant gloves (nitrile, neoprene) and suit. Extreme skin absorption hazard - prevent any contact.
ISOLATION: ERG 151: Isolate spill area immediate 25m in all directions. For large spill, isolate 50m and evacuate downwind 300m. Avoid contact with liquid or solid.
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 3444 — Nicotine hydrochloride, solid
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: White to off-white or light tan crystalline solid. Odorless to faint tobacco-like odor. Hygroscopic (absorbs moisture from air).
Water Reactivity: Soluble in water, no violent reaction. Aqueous solutions are acidic.
Extinguishing: Water spray, dry chemical, CO2, or foam suitable for ordinary combustibles
PPE: Level B minimum required. SCBA with full facepiece in positive pressure mode. Chemical-resistant gloves (nitrile, neoprene) and suit. Extreme skin absorption hazard - prevent any contact.
Isolation: ERG 151: Isolate spill area immediate 25m in all directions. For large spill, isolate 50m and evacuate downwind 300m. Avoid contact with liquid or solid.
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• Avoid any skin contact.
• Fire may produce irritating, corrosive and/or toxic gases.
— First Actions —
• CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters.
SOURCE: allfirefighter.com/hazmat/un/nicotine-hydrochloride-solid-un-3444 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN3444 Nicotine hydrochloride, solid Cls6 ERG151 | allfirefighter.com/hazmat/un/nicotine-hydrochloride-solid-un-3444SMS / 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/nicotine-hydrochloride-solid-un-3444
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Frequently Asked Questions about UN 3444
UN 3444 is Nicotine hydrochloride, solid, a Class 6 hazardous material assigned to ERG Guide 151.
UN 3444 may burn or support fire depending on the product and fire conditions. Keep ignition sources away and follow ERG 151.
Soluble in water, no violent reaction. Aqueous solutions are acidic.
Level B minimum required. SCBA with full facepiece in positive pressure mode. Chemical-resistant gloves (nitrile, neoprene) and suit. Extreme skin absorption hazard - prevent any contact.
ERG 151: Isolate spill area immediate 25m in all directions. For large spill, isolate 50m and evacuate downwind 300m. Avoid contact with liquid or solid.
Water spray, dry chemical, CO2, or foam suitable for ordinary combustibles
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.