UN 2512 — Aminophenols
Placard: Toxic. ERG Guide 152. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2512 is Aminophenols, a broad toxic aminophenol isomer entry assigned to ERG Guide 152. Skin absorption and exact isomer review are important.
Hazard overview: TOXIC aminophenol isomer solid; inhalation, ingestion or skin absorption may cause severe injury. Skin absorption and contaminated clothing are major exposure concerns. Combustible solid: may burn but does not ignite readily.
Response guidance: For UN 2512, isolate the area, avoid skin contact and use SCBA where dust, vapor, mist or fire is present. Contain toxic/corrosive runoff and verify product controls with SDS and ERG 152.
Firefighter training notes: Training for UN 2512 should emphasize toxic/corrosive exposure routes, skin absorption, SCBA use, decontamination, runoff containment and SDS verification. Use ERG 152, SDS and local SOP.
Regulatory context: Aminophenols 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: Aminophenols should be stored in tightly closed compatible containers with ventilation, secondary containment, restricted access and SDS-based segregation from incompatible materials.
UN 2512 Quick Details
Common Hazards of UN 2512
- TOXIC aminophenol isomer solid; inhalation, ingestion or skin absorption may cause severe injury.
- Skin absorption and contaminated clothing are major exposure concerns.
- Combustible solid: may burn but does not ignite readily.
- Dust may irritate eyes, skin and respiratory tract.
- Fire may produce nitrogen oxides, phenolic/aniline smoke and other toxic gases.
- Runoff may carry toxic phenolic amine contamination.
- Exact isomer and physical behavior should be verified from SDS.
Chemical Identity & Physical Properties
White to light brown or reddish-brown crystalline solid or powder. May darken on exposure to air and light. Slight phenolic odor.
| Also known as | aminophenol isomershydroxylanilineaminohydroxybenzenephenolic amines |
| Appearance | White to light brown or reddish-brown crystalline solid or powder. May darken on exposure to air and light. Slight phenolic odor. |
| Flash Point | Not applicable (combustible solid) |
| Boiling Point | Varies by isomer: o-aminophenol 153C (307F), m-aminophenol decomposes, p-aminophenol decomposes ~284C |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction; slightly soluble in water |
Fireground Response Guidance — UN 2512
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.
Isolation & Evacuation
First Actions for a UN 2512 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 dust, liquid, runoff and decontamination waste from spreading.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 152, SDS, shipping papers and monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2512 — AminophenolsUse 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.