☣️ UN 2291 • CLASS 6
Lead compound, soluble, n.o.s.
Placard: Toxic. 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 2291
Class: 6
Placard type: Toxic
ERG: Guide 151 (check current ERG)
Isolation: ERG 151: isolate spill area at least 25m in all directions; if large spill isolate 50m and consider evacuation of 300m downwind
Chemical & Response Details
| Also known as | Lead salts, solubleLead acetateLead nitrateLead chloride (when soluble)Soluble lead compounds |
| Appearance | Appearance varies by specific compound; typically white to colorless crystalline solids or powders, some may be yellowish. Generally odorless. |
| Flash Point | Not applicable (inorganic salt) |
| Boiling Point | Not applicable (decomposes upon heating) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Soluble in water; no violent reaction but dissolution increases exposure hazard |
| Extinguishing | Dry chemical, CO2, water spray for cooling; foam not typically required for solids |
| PPE | ⚠️ Level B minimum; full face respirator with HEPA filters or SCBA; chemical-resistant gloves and suit to prevent skin contact; avoid inhalation and ingestion |
| Isolation | ERG 151: isolate spill area at least 25m in all directions; if large spill isolate 50m and consider evacuation of 300m downwind |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- 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
- Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive
- Containers may explode when heated.
- Runoff may pollute waterways.
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.
- 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 measure distance, in the downwind
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UN 2291 — Lead compound, soluble, n.o.s. HAZMAT RADIO NOTE — UN 2291
Product: Lead compound, soluble, n.o.s.
Class 6 / Toxic / ERG 151
PPE: Level B minimum; full face respirator with HEPA filters or SCBA; chemical-resistant gloves and suit to prevent skin contact; avoid inhalation and ingestion
ISOLATION: ERG 151: isolate spill area at least 25m in all directions; if large spill isolate 50m and consider evacuation of 300m downwind
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 2291 — Lead compound, soluble, n.o.s.
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Appearance varies by specific compound; typically white to colorless crystalline solids or powders, some may be yellowish. Generally odorless.
Water Reactivity: Soluble in water; no violent reaction but dissolution increases exposure hazard
Extinguishing: Dry chemical, CO2, water spray for cooling; foam not typically required for solids
PPE: Level B minimum; full face respirator with HEPA filters or SCBA; chemical-resistant gloves and suit to prevent skin contact; avoid inhalation and ingestion
Isolation: ERG 151: isolate spill area at least 25m in all directions; if large spill isolate 50m and consider evacuation of 300m downwind
— 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 emergency response telephone number on shipping paper. If shipping paper
• 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/2291 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2291 Lead compound, soluble, n.o.s. Cls6 ERG151 | allfirefighter.com/hazmat/un/2291SMS / 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/2291
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FAQ
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 Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive Containers may explode when heated. Runoff may pollute waterways.
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; full face respirator with HEPA filters or SCBA; chemical-resistant gloves and suit to prevent skin contact; avoid inhalation and ingestion
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 151 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.