UN 2753 — N-Ethylbenzyltoluidines, liquid
Placard: Toxic. ERG Guide 153. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2753 is N-Ethylbenzyltoluidines, liquid, a toxic aromatic amine entry assigned to ERG Guide 153. Skin absorption and exact isomer/formulation review are important.
Hazard overview: TOXIC aromatic amine liquid; inhalation, ingestion or skin absorption may cause serious injury. Skin contact and contaminated clothing are major exposure concerns. Combustible liquid; heated vapors may form ignitable mixtures with air.
Response guidance: For UN 2753, isolate the area, avoid skin contact and use SCBA where dust, vapor, mist or fire is present. Prevent contaminated runoff and verify exact formulation with SDS and ERG 153.
Firefighter training notes: Training for UN 2753 should emphasize vapor travel, toxic exposure routes, SCBA use, fire behavior, decontamination, runoff containment and SDS verification. Use ERG 153, SDS and local SOP.
Regulatory context: N-Ethylbenzyltoluidines, liquid is regulated as a hazardous material for transport and emergency response. Storage, exposure, spill reporting, waste and fire-code duties depend on quantity, concentration and jurisdiction; verify shipping papers, SDS and local authority requirements.
Storage & handling: N-Ethylbenzyltoluidines, liquid should be stored in tightly closed compatible containers with ventilation, secondary containment, restricted access and SDS-based segregation from incompatible materials.
UN 2753 Quick Details
Common Hazards of UN 2753
- TOXIC aromatic amine liquid; inhalation, ingestion or skin absorption may cause serious injury.
- Skin contact and contaminated clothing are major exposure concerns.
- Combustible liquid; heated vapors may form ignitable mixtures with air.
- Vapors are heavier than air and may collect in low or confined areas.
- Fire may produce nitrogen oxides and toxic aromatic amine smoke.
- Runoff may carry toxic amine contamination.
- Exact isomer/formulation should be verified from SDS and shipping papers.
Chemical Identity & Physical Properties
Clear to pale yellow or amber liquid with a faint aromatic amine odor. Oily consistency at room temperature.
| Also known as | N-EthylbenzyltoluidinesNEBTethylbenzyl toluidine mixturesaromatic amine derivative |
| Appearance | Clear to pale yellow or amber liquid with a faint aromatic amine odor. Oily consistency at room temperature. |
| Flash Point | Typically 93-110C (200-230F), combustible liquid |
| Boiling Point | Approximately 260-320C (500-608F), varies with isomer composition |
| Vapor Density | Heavier than air, approximately 7-8 relative to air |
| Water Reactivity | No significant reaction with water, but immiscible and may hydrolyze slowly |
Fireground Response Guidance — UN 2753
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for vapor, dust, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing.
Isolation & Evacuation
First Actions for a UN 2753 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.
- 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 153, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2753 — N-Ethylbenzyltoluidines, liquidUse 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.