☣️ UN 3282 • CLASS 6
UN 3282 — Organometallic compound, liquid, poisonous, n.o.s.
Placard: Toxic. ERG Guide 151. 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 3282 Quick Details
UN 3282
Product name: Organometallic compound, liquid, poisonous, n.o.s.
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: isolate spill 25-50m all directions; if tank/rail car involved in fire, isolate 800m all directions and consider evacuation for 800m in all directions
Common Hazards of UN 3282
- 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.
Chemical Identity & Physical Properties
| Also known as | Organometallic substance, liquid, toxic, n.o.s.Organometallic compound, liquid, toxicMetal-organic compound, liquid, poisonous |
| Appearance | Variable appearance depending on specific compound. Typically colorless to amber liquid with mild to pungent odor. May be pyrophoric or water-reactive depending on metal component. |
| Flash Point | Variable, typically -20C to 60C (-4F to 140F) depending on specific organometallic compound and solvent |
| Boiling Point | Variable, typically 50C to 200C (122F to 392F) depending on specific compound and solvent system |
| Vapor Density | Typically >1 (heavier than air), varies by specific organometallic compound and carrier solvent |
| Water Reactivity | May react violently with water, especially alkyl metals; many organometallics are water-sensitive and may decompose or ignite |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 3282
Extinguishing Media
Dry chemical, CO2, or sand preferred; avoid water-based agents if water-reactive; alcohol-resistant foam may be suitable for non-reactive types
PPE Requirements
⚠️ Level A or B required; full-face SCBA mandatory; chemical-resistant suit with butyl or Viton gloves; avoid all skin contact due to high toxicity
Isolation & Evacuation
ERG 151: isolate spill 25-50m all directions; if tank/rail car involved in fire, isolate 800m all directions and consider evacuation for 800m in all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 3282 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.
- 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 3282 — Organometallic compound, liquid, poisonoHAZMAT RADIO NOTE — UN 3282
Product: Organometallic compound, liquid, poisonous, n.o.s.
Class 6 / Toxic / ERG 151
PPE: Level A or B required; full-face SCBA mandatory; chemical-resistant suit with butyl or Viton gloves; avoid all skin contact due to high toxicity
ISOLATION: ERG 151: isolate spill 25-50m all directions; if tank/rail car involved in fire, isolate 800m all directions and consider evacuation for 800m in all directions
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 3282 — Organometallic compound, liquid, poisonous, n.o.s.
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Variable appearance depending on specific compound. Typically colorless to amber liquid with mild to pungent odor. May be pyrophoric or water-reactive depending on metal component.
Water Reactivity: May react violently with water, especially alkyl metals; many organometallics are water-sensitive and may decompose or ignite
Extinguishing: Dry chemical, CO2, or sand preferred; avoid water-based agents if water-reactive; alcohol-resistant foam may be suitable for non-reactive types
PPE: Level A or B required; full-face SCBA mandatory; chemical-resistant suit with butyl or Viton gloves; avoid all skin contact due to high toxicity
Isolation: ERG 151: isolate spill 25-50m all directions; if tank/rail car involved in fire, isolate 800m all directions and consider evacuation for 800m in all directions
— 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/3282 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN3282 Organometallic compound, liquid, poisonous, n.o.s. Cls6 ERG151 | allfirefighter.com/hazmat/un/3282SMS / 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/3282
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Frequently Asked Questions about UN 3282
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 A or B required; full-face SCBA mandatory; chemical-resistant suit with butyl or Viton gloves; avoid all skin contact due to high toxicity
Water reactivity: May react violently with water, especially alkyl metals; many organometallics are water-sensitive and may decompose or ignite. Recommended extinguishing: Dry chemical, CO2, or sand preferred; avoid water-based agents if water-reactive; alcohol-resistant foam may be suitable for non-reactive types.
ERG Guide 151 recommendation: ERG 151: isolate spill 25-50m all directions; if tank/rail car involved in fire, isolate 800m all directions and consider evacuation for 800m in all directions
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.