UN 3467 — Organometallic compound, solid, poisonous, n.o.s.
Placard: Toxic. ERG Guide 151. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 3467 is Organometallic compound, solid, poisonous, n.o.s., a broad toxic organometallic solid assigned to ERG Guide 151. Reactivity and metal contamination require SDS review.
Hazard overview: HIGHLY TOXIC organometallic solid, n.o.s.; inhalation, ingestion or skin absorption may be fatal. Some organometallics are air- or moisture-reactive; exact reactivity must be verified. Combustibility varies, and some products may ignite or decompose when heated or exposed to air/water.
Response guidance: For UN 3467, 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 3467 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, solid, 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, concentration, formulation and jurisdiction; verify shipping papers, SDS and authority guidance.
Storage & handling: Organometallic compound, solid, poisonous, n.o.s. should be stored in tightly closed compatible containers with restricted access, ventilation, secondary containment and segregation from moisture, oxidizers and incompatible materials per SDS.
UN 3467 Quick Details
Common Hazards of UN 3467
- HIGHLY TOXIC organometallic solid, n.o.s.; inhalation, ingestion or skin absorption may be fatal.
- Some organometallics are air- or moisture-reactive; exact reactivity must be verified.
- Combustibility varies, and some products may ignite or decompose when heated or exposed to air/water.
- Dust can contaminate clothing, tools and runoff.
- Fire may produce toxic metal oxide fumes and irritating organic smoke.
- Runoff may carry persistent metal-organic contamination.
- Exact metal, ligand, stabilizer and physical form must be verified from SDS.
Chemical Identity & Physical Properties
Solid material varying in color and form depending on specific compound. May be crystalline, powder, or granular. Odor varies by compound.
| Also known as | Organometallic solidToxic organometallic substanceMetal-organic compound solidOrganometallic poison |
| Appearance | Solid material varying in color and form depending on specific compound. May be crystalline, powder, or granular. Odor varies by compound. |
| Flash Point | Varies by specific compound; many are flammable or pyrophoric |
| Boiling Point | Not applicable (solid); decomposes at elevated temperatures |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Many organometallics react with water, releasing toxic or flammable gases; avoid water contact unless compound is known to be stable |
Fireground Response Guidance — UN 3467
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA and full chemical protective clothing. Level A may be needed for unknown compound, dust, vapor, splash or high skin-absorption risk.
Isolation & Evacuation
First Actions for a UN 3467 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.
- Avoid heat, friction, shock, contamination and incompatible extinguishing media.
- Do not touch damaged containers, equipment 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 3467 — Organometallic compound, solid, poisonouUse 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.