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.
UN 3282 is Organometallic compound, liquid, poisonous, n.o.s., a broad toxic organometallic liquid entry assigned to ERG Guide 151. Reactivity and metal contamination require SDS review.
Hazard overview: HIGHLY TOXIC organometallic liquid, n.o.s.; inhalation, ingestion or skin absorption may be fatal. Some organometallics are air- or moisture-sensitive; exact reactivity must be verified. Combustibility varies, and some products may ignite or decompose on exposure to air or water.
Response guidance: For UN 3282, isolate the area, avoid all skin contact and use SCBA with chemical protection. Prevent runoff spread and verify exact compound with SDS and ERG 151.
Firefighter training notes: Training for UN 3282 should emphasize high-toxicity exposure routes, skin absorption, SCBA/Level A decisions, decontamination, runoff control and exact-compound verification. Use ERG 151, SDS and local SOP.
Regulatory context: Organometallic compound, liquid, poisonous, n.o.s. is regulated as a hazardous material for transport and emergency response. Storage, reporting, exposure, waste and incident-notification duties depend on quantity, composition, concentration and jurisdiction; verify shipping papers, SDS and authority guidance.
Storage & handling: Organometallic compound, liquid, poisonous, n.o.s. should be stored in tightly closed compatible containers away from moisture, heat, ignition sources and incompatible acids/bases/oxidizers as specified by SDS.
UN 3282 Quick Details
Common Hazards of UN 3282
- HIGHLY TOXIC organometallic liquid, n.o.s.; inhalation, ingestion or skin absorption may be fatal.
- Some organometallics are air- or moisture-sensitive; exact reactivity must be verified.
- Combustibility varies, and some products may ignite or decompose on exposure to air or water.
- Fire may produce toxic metal oxide fumes, carbon monoxide and irritating gases.
- Runoff may carry persistent metal-organic contamination.
- Skin contact and contaminated clothing can extend exposure.
- Exact metal, ligand, solvent and stabilizer must be verified from SDS.
Chemical Identity & Physical Properties
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.
| 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 |
Fireground Response Guidance — UN 3282
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA and full chemical protective clothing. Level A may be needed for unknown concentration, heavy vapor, splash or high skin-absorption risk.
Isolation & Evacuation
First Actions for a UN 3282 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream.
- Avoid breathing vapor, dust, mist, smoke or fumes and avoid skin or eye contact.
- Keep water or moisture contact controlled until the exact product compatibility is verified.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Prevent contaminated liquid, dust, runoff and decontamination waste from spreading.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 151, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 3282 — Organometallic compound, liquid, poisonoUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.