☣️ UN 2812 • CLASS 8
UN 2812 — Sodium aluminate, solid
Placard: Corrosive. ERG Guide 154. 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.
Sodium aluminate, solid is a corrosive alkaline solid. Moisture or water can turn the material into a hot caustic solution that burns tissue and damages surfaces.
Hazard overview: The principal hazard is caustic injury from dust or wet material. Water contact can intensify exposure by dissolving the solid and releasing heat.
Response guidance: Avoid raising dust, isolate the area and keep material dry where possible. Prevent runoff from entering drains and use compatible dry control methods unless water use is specifically justified.
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UN 2812 Quick Details
UN 2812
Product name: Sodium aluminate, solid
DOT Class: 8
Placard type: Corrosive
ERG Guide: 154 (check current ERG)
Initial isolation: ERG 154: isolate spill 25m all directions; for large spill isolate 50m and consider evacuation 300m downwind
Common Hazards of UN 2812
- Sodium aluminate is strongly alkaline and corrosive to skin and eyes.
- Dust can injure the respiratory tract and eyes.
- Contact with water can release heat and form a highly caustic solution.
- Contact with some metals may release flammable hydrogen gas.
- Fire may produce irritating alkaline dust or fumes from contaminated material.
- Runoff can remain highly alkaline and damage waterways or surfaces.
- Containers may fail if heated, wetted or physically damaged.
Chemical Identity & Physical Properties
Sodium aluminate is typically a white to grayish crystalline powder or granular solid. It is hygroscopic and can absorb moisture from air.
| Also known as | Aluminate of sodaSodium aluminate anhydrousAluminum sodium oxideSoda aluminateMonosodium aluminate |
| CAS Number | 1302-42-7 |
| Appearance | White to grayish-white crystalline powder or granular solid. Odorless. Hygroscopic (absorbs moisture from air). |
| Flash Point | Not applicable (non-flammable solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Reacts with water producing heat and highly alkaline solution (pH 11-13); generates some hydrogen gas |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2812
Extinguishing Media
Dry chemical, soda ash, lime; avoid water-based agents due to exothermic reaction
PPE Requirements
⚠️ Level B minimum; full face shield, chemical-resistant gloves and suit; SCBA for confined spaces or large spills; protect against alkaline dust inhalation
Wear chemical-resistant clothing, gloves, boots, eye and face protection. Use SCBA for dust clouds, confined spaces or fire involvement.
Isolation & Evacuation
ERG 154: isolate spill 25m all directions; for large spill isolate 50m and consider evacuation 300m downwind
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 154).
First Actions for a UN 2812 Incident
- Call 911 and the emergency response number shown on the shipping papers or container documents.
- Keep unauthorized personnel away and establish an isolation perimeter before entry.
- Stay upwind, uphill and upstream; keep responders out of vapors, dusts and runoff.
- Avoid breathing vapors, dust, mist or smoke and avoid skin or eye contact.
- Do not touch damaged containers or spilled material unless properly trained and protected.
- Ventilate confined spaces only when personnel are trained, equipped and monitored.
- Use ERG guidance, SDS, shipping papers and air monitoring to confirm protective actions.
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📋 Copy & Share Field Card
UN 2812 — Sodium aluminate, solidHAZMAT RADIO NOTE — UN 2812
Product: Sodium aluminate, solid
Class 8 / Corrosive / ERG 154
PPE: Level B minimum; full face shield, chemical-resistant gloves and suit; SCBA for confined spaces or large spills; protect against alkaline dust inhalation
ISOLATION: ERG 154: isolate spill 25m all directions; for large spill isolate 50m and consider evacuation 300m downwind
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 2812 — Sodium aluminate, solid
Class: 8 | Placard: Corrosive | ERG Guide: 154
Appearance: White to grayish-white crystalline powder or granular solid. Odorless. Hygroscopic (absorbs moisture from air).
Water Reactivity: Reacts with water producing heat and highly alkaline solution (pH 11-13); generates some hydrogen gas
Extinguishing: Dry chemical, soda ash, lime; avoid water-based agents due to exothermic reaction
PPE: Level B minimum; full face shield, chemical-resistant gloves and suit; SCBA for confined spaces or large spills; protect against alkaline dust inhalation
Isolation: ERG 154: isolate spill 25m all directions; for large spill isolate 50m and consider evacuation 300m downwind
— Key Hazards —
• Sodium aluminate is strongly alkaline and corrosive to skin and eyes.
• Dust can injure the respiratory tract and eyes.
• Contact with water can release heat and form a highly caustic solution.
— First Actions —
• Call 911 and the emergency response number shown on the shipping papers or container documents.
• Keep unauthorized personnel away and establish an isolation perimeter before entry.
• Stay upwind, uphill and upstream; keep responders out of vapors, dusts and runoff.
• Avoid breathing vapors, dust, mist or smoke and avoid skin or eye contact.
SOURCE: allfirefighter.com/hazmat/un/sodium-aluminate-solid-un-2812 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN2812 Sodium aluminate, solid Cls8 ERG154 | allfirefighter.com/hazmat/un/sodium-aluminate-solid-un-2812SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/sodium-aluminate-solid-un-2812
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Frequently Asked Questions about UN 2812
No. It is not a fuel, but contact with some metals may release hydrogen gas.
It can generate heat and form a strongly alkaline, corrosive solution.
Caustic burns to skin, eyes and airways from dust or wet material.
Avoid sweeping dry dust into the air; use controlled collection methods and proper respiratory protection.
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.