UN 2077 — Naphthylamine (alpha)
Placard: Toxic. ERG Guide 153. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2077 is Naphthylamine (alpha), a toxic aromatic amine solid assigned to ERG Guide 153. Dust, skin contact and carcinogenic concern require strict exposure control.
Hazard overview: TOXIC aromatic amine solid; inhalation, ingestion or skin contact may cause serious injury. Known carcinogenic concern; prevent dust, skin contact and contaminated clothing. Combustible solid: may burn but does not ignite readily.
Response guidance: For a UN 2077 incident, verify the product with shipping papers, container markings, SDS and ERG Guide 153. Establish incident command, isolate the area, stay upwind, control ignition or incompatibility hazards, prevent runoff or vapor spread and base entry/fire-control actions on monitoring and local SOP.
Firefighter training notes: Training for UN 2077 should emphasize exposure routes, air monitoring, PPE selection, fire behavior, decontamination, runoff containment and ERG/SDS verification. Use ERG 153, SDS and local SOP.
Regulatory context: Naphthylamine (alpha) is regulated as a hazardous material for transportation and emergency response purposes. Storage, workplace exposure, emergency planning, spill reporting, waste handling and environmental requirements vary by exact product, concentration, quantity and jurisdiction. Verify current requirements through shipping papers, SDS, container markings and applicable DOT, OSHA, EPA, NFPA, state or local authority guidance.
Storage & handling: Naphthylamine (alpha) should be stored in tightly closed compatible containers in a secure, ventilated toxic/corrosive area with secondary containment, restricted access and segregation from incompatible chemicals according to SDS.
UN 2077 Quick Details
Common Hazards of UN 2077
- TOXIC aromatic amine solid; inhalation, ingestion or skin contact may cause serious injury.
- Known carcinogenic concern; prevent dust, skin contact and contaminated clothing.
- Combustible solid: may burn but does not ignite readily.
- Dust or powder can contaminate tools, surfaces and PPE.
- Fire may produce nitrogen oxides and toxic smoke.
- Runoff may carry persistent toxic contamination.
- Containers may rupture or fail when heated.
Chemical Identity & Physical Properties
White to reddish crystalline solid that darkens on exposure to air. Faint aromatic odor. Turns purple-red on contact with air.
| Also known as | 1-Naphthylaminealpha-Naphthylamine1-AminonaphthaleneFast Garnet B Base |
| CAS Number | 134-32-7 |
| Appearance | White to reddish crystalline solid that darkens on exposure to air. Faint aromatic odor. Turns purple-red on contact with air. |
| Flash Point | 157C (315F) |
| Boiling Point | 300C (572F) |
| Vapor Density | 5.0 (heavier than air) |
| Water Reactivity | No significant reaction with water; slightly soluble |
Fireground Response Guidance — UN 2077
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for dust, vapor, mist, fire or confined-space exposure. Wear chemical-resistant gloves, boots, eye/face protection and protective clothing selected from SDS; avoid skin contact.
Isolation & Evacuation
First Actions for a UN 2077 Incident
- CALL 911. Then call the emergency response telephone number on the shipping paper, if available.
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Avoid breathing vapors, gas, dust, mist, smoke or fumes and avoid skin or eye contact.
- Do not touch damaged containers or spilled/released material unless properly trained and wearing appropriate protective equipment.
- Ventilate closed spaces before entering, but only if properly trained, equipped, monitored and authorized by incident command.
- Isolate the spill or release area and expand the perimeter for fire involvement, vapor spread, gas accumulation, cylinder heating or unknown product identity.
- Use ERG Guide 153, shipping papers, SDS, air monitoring and incident command for protective actions.
📋 Copy & Share Field Card
UN 2077 — Naphthylamine (alpha)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.