UN 2512 — Aminophenols
Placard: Toxic. ERG Guide 152. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2512 At a Glance
UN 2512 (Aminophenols) is listed as DOT Class 6 Toxic and is assigned to ERG Guide 152. Use this page to review placard data, common hazards, PPE notes, isolation context, first actions, and related UN numbers.
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.