UN 3408 — Lead perchlorate, solution
Placard: Oxidizer. ERG Guide 141. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 3408 is Lead perchlorate, solution, a toxic oxidizing salt solution assigned to ERG Guide 141. Oxidizer contamination and metal toxicity require control.
Hazard overview: OXIDIZING and TOXIC lead salt solution; can accelerate fire involving combustibles. Contamination with fuels, organics, reducing agents, oils or metals can cause fire or violent decomposition. Although aqueous, solution can leave oxidizing residues as water evaporates.
Response guidance: For UN 3408, isolate the release, remove combustibles/reducing agents and use SCBA for mist or fire. Control oxidizing/toxic runoff and verify SDS under ERG 141.
Firefighter training notes: Training for UN 3408 should emphasize oxidizer contamination, incompatible materials, toxic metal/runoff hazards, SCBA use and oxidizer-compatible cleanup. Use ERG 141, SDS and local SOP.
Regulatory context: Lead perchlorate, solution 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: Lead perchlorate, solution should be stored in compatible oxidizer-rated containers away from combustibles, organics, fuels, reducing agents, acids where incompatible and contamination sources.
UN 3408 Quick Details
Common Hazards of UN 3408
- OXIDIZING and TOXIC lead salt solution; can accelerate fire involving combustibles.
- Contamination with fuels, organics, reducing agents, oils or metals can cause fire or violent decomposition.
- Although aqueous, solution can leave oxidizing residues as water evaporates.
- Lead toxicity makes ingestion, skin contact, contaminated runoff and cleanup waste important hazards.
- Containers may rupture when heated or contaminated.
- Fire may produce chlorine/oxygen-containing gases and toxic metal-containing smoke.
- Runoff may be toxic, oxidizing and harmful to waterways.
Chemical Identity & Physical Properties
Clear to pale yellow aqueous solution with no distinct odor. Solution of white crystalline lead perchlorate salt dissolved in water.
| Also known as | Lead(II) perchlorate solutionPerchloric acid lead salt solutionLead diperchlorate solution |
| CAS Number | 13637-76-8 |
| Appearance | Clear to pale yellow aqueous solution with no distinct odor. Solution of white crystalline lead perchlorate salt dissolved in water. |
| Flash Point | Not applicable (aqueous solution) |
| Boiling Point | Approximately 100C (212F), similar to water depending on concentration |
| Vapor Density | Not applicable (aqueous solution) |
| Water Reactivity | Already in aqueous solution; dilution releases heat but no violent reaction |
Fireground Response Guidance — UN 3408
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for fire, mist or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and oxidizer-compatible protective clothing.
Isolation & Evacuation
First Actions for a UN 3408 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 combustibles, organics, fuels, oils and reducing agents away from the oxidizer.
- 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 141, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 3408 — Lead perchlorate, solutionUse 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.