☣️ UN 2512 • CLASS 6
Aminophenols
Placard: Toxic. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
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⚠️ This page is a quick-reference aid. For real incidents: stage upwind, isolate, deny entry, request Hazmat early, and consult the current ERG + SOP/SOG.
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Quick details
UN 2512
Class: 6
Placard type: Toxic
ERG: Guide 152 (check current ERG)
Isolation: ERG 152: isolate spill 25m all directions; if fire or large spill, isolate 800m all directions initially
Chemical & Response Details
| 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 |
| Extinguishing | Dry chemical, CO2, water spray, foam suitable for combustible solids |
| PPE | ⚠️ Level B minimum; SCBA required; full chemical protective clothing to prevent skin absorption; highly toxic by all routes |
| Isolation | ERG 152: isolate spill 25m all directions; if fire or large spill, isolate 800m all directions initially |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- Contact with molten substance may cause severe burns to skin and eyes.
- Avoid any skin contact.
- Fire may produce irritating, corrosive and/or toxic gases.
- Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental
- Combustible material: may burn but does not ignite readily.
- Containers may explode when heated.
- Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
First actions (field-minded)
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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UN 2512 — Aminophenols HAZMAT RADIO NOTE — UN 2512
Product: Aminophenols
Class 6 / Toxic / ERG 152
PPE: Level B minimum; SCBA required; full chemical protective clothing to prevent skin absorption; highly toxic by all routes
ISOLATION: ERG 152: isolate spill 25m all directions; if fire or large spill, isolate 800m all directions initially
ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO
Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.
=== IC HAZMAT BRIEFING ===
UN 2512 — Aminophenols
Class: 6 | Placard: Toxic | ERG Guide: 152
Appearance: White to light brown or reddish-brown crystalline solid or powder. May darken on exposure to air and light. Slight phenolic odor.
Water Reactivity: No significant reaction; slightly soluble in water
Extinguishing: Dry chemical, CO2, water spray, foam suitable for combustible solids
PPE: Level B minimum; SCBA required; full chemical protective clothing to prevent skin absorption; highly toxic by all routes
Isolation: ERG 152: isolate spill 25m all directions; if fire or large spill, isolate 800m all directions initially
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• Contact with molten substance may cause severe burns to skin and eyes.
• Avoid any skin contact.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Keep unauthorized personnel away.
• Stay upwind, uphill and/or upstream.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
SOURCE: allfirefighter.com/hazmat/un/2512 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2512 Aminophenols Cls6 ERG152 | ERG 152: isolate spill 25m all directions; if fire or large spill, isolate 800m | allfirefighter.com/hazmat/un/2512SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS. Includes link to full page.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions. Page: https://allfirefighter.com/hazmat/un/2512
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FAQ
Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental Combustible material: may burn but does not ignite readily. Containers may explode when heated. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Keep unauthorized personnel away. Stay upwind, uphill and/or upstream.
Level B minimum; SCBA required; full chemical protective clothing to prevent skin absorption; highly toxic by all routes
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 152 and your department SOP/SOG for incident-specific protective actions.
Sources (high level): DOT/PHMSA marking & class concepts + ERG usage principles. This page does not reproduce ERG guide text—always consult the current ERG for incident-specific protective actions.