UN 3348 — Phenoxyacetic acid derivative pesticide, liquid, poisonous
Placard: Toxic. ERG Guide 153. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 3348 At a Glance
UN 3348 (Phenoxyacetic acid derivative pesticide, liquid, poisonous) is listed as DOT Class 6 Toxic and is assigned to ERG Guide 153. Use this page to review placard data, common hazards, PPE notes, isolation context, first actions, and related UN numbers.
UN 3348 is Phenoxyacetic acid derivative pesticide, liquid, poisonous, a toxic phenoxyacetic pesticide liquid assigned to ERG Guide 153. Exact active ingredient and solvent must be verified.
Hazard overview: TOXIC phenoxyacetic acid derivative pesticide liquid; inhalation, ingestion or skin absorption may cause injury. Combustibility depends on formulation and carrier solvent. Liquid can contaminate clothing, soil, drains and waterways.
Response guidance: For UN 3348, isolate the area, avoid skin contact and use SCBA for dust/vapor/fire. Contain pesticide runoff and verify active ingredient with SDS and ERG 153.
Firefighter training notes: Training for UN 3348 should emphasize product verification, SCBA use, exposure control, decontamination, runoff containment and SDS/shipping paper review. Use ERG 153, SDS and local SOP.
Regulatory context: Phenoxyacetic acid derivative pesticide, liquid, poisonous is regulated as a hazardous material for transport and emergency response. Storage, reporting, exposure, waste and incident-notification duties depend on quantity, package type, formulation and jurisdiction; verify shipping papers, SDS and authority guidance.
Storage & handling: Phenoxyacetic acid derivative pesticide, liquid, poisonous should be stored in tightly closed compatible containers or packages with ventilation, secondary containment, restricted access and SDS-based segregation from incompatible materials.
UN 3348 Quick Details
Common Hazards of UN 3348
- TOXIC phenoxyacetic acid derivative pesticide liquid; inhalation, ingestion or skin absorption may cause injury.
- Combustibility depends on formulation and carrier solvent.
- Liquid can contaminate clothing, soil, drains and waterways.
- Fire may produce hydrogen chloride, toxic pesticide smoke and irritating/corrosive gases.
- Runoff may be toxic, persistent and environmentally harmful.
- Avoid unprotected contact and prevent spread to waterways.
- Exact active ingredient, salt/ester form, solvent and concentration must be verified from SDS.
Chemical Identity & Physical Properties
Clear to amber-colored liquid with mild aromatic or phenolic odor. May be viscous depending on formulation concentration. Liquid at room temperature.
| Also known as | Phenoxy herbicide solution2,4-D liquid formulationMCPA pesticide liquidPhenoxyalkanoic acid pesticide |
| Appearance | Clear to amber-colored liquid with mild aromatic or phenolic odor. May be viscous depending on formulation concentration. Liquid at room temperature. |
| Flash Point | Varies by formulation, typically 60-93C (140-200F) for common solvent-based products |
| Boiling Point | Varies by carrier solvent, typically 100-200C (212-392F) depending on formulation |
| Vapor Density | Greater than 1 (heavier than air) for most organic solvent carriers |
| Water Reactivity | No significant reaction with water, though may slowly hydrolyze in alkaline conditions |
Fireground Response Guidance — UN 3348
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA where vapor, dust, smoke or fire is present. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 3348 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, gas, mist, smoke or aerosols and avoid skin or eye contact.
- Do not touch damaged containers, cylinders, packages or spilled material without proper training and PPE.
- Prevent contaminated liquid, dust, runoff, residue and decontamination waste from spreading.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 153, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 3348 — Phenoxyacetic acid derivative pesticide,Use 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.