☣️ UN 2464 • CLASS 5
UN 2464 — Beryllium nitrate
Placard: Oxidizer. ERG Guide 141. 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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UN 2464 Quick Details
UN 2464
Product name: Beryllium nitrate
DOT Class: 5
Placard type: Oxidizer
ERG Guide: 141 (check current ERG)
Initial isolation: ERG 141: isolate 25-50m all directions initially; for large spills consider evacuation 100m downwind; if fire involves large quantity, isolate 800m radius
Common Hazards of UN 2464
- These substances will accelerate burning when involved in a fire.
- May explode from heat or contamination.
- Some may burn rapidly.
- Some will react explosively with hydrocarbons (fuels).
- May ignite combustibles (wood, paper, oil, clothing, etc.).
- Containers may explode when heated.
- Runoff may create fire or explosion hazard.
- Toxic by ingestion.
Chemical Identity & Physical Properties
| Also known as | Beryllium dinitrateNitric acid beryllium saltBeryllium(II) nitrate |
| CAS Number | 13597-99-4 |
| Appearance | White to slightly yellow crystalline solid or powder. Odorless. Highly toxic and carcinogenic beryllium compound with oxidizing properties. |
| Flash Point | Not applicable (oxidizing solid) |
| Boiling Point | Decomposes at 100-110C (212-230F) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Soluble in water, forming acidic solution. No violent reaction expected. |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2464
Extinguishing Media
Dry chemical, CO2, water spray acceptable for fire involving this oxidizer
PPE Requirements
⚠️ Level A or B minimum; SCBA required; full face protection mandatory due to extreme beryllium toxicity and carcinogenicity
Isolation & Evacuation
ERG 141: isolate 25-50m all directions initially; for large spills consider evacuation 100m downwind; if fire involves large quantity, isolate 800m radius
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 141).
First Actions for a UN 2464 Incident
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Keep unauthorized personnel away.
- Stay upwind, uphill and/or upstream.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- Consider initial downwind evacuation for at least 100 meters (330 feet).
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📋 Copy & Share Field Card
UN 2464 — Beryllium nitrateHAZMAT RADIO NOTE — UN 2464
Product: Beryllium nitrate
Class 5 / Oxidizer / ERG 141
PPE: Level A or B minimum; SCBA required; full face protection mandatory due to extreme beryllium toxicity and carcinogenicity
ISOLATION: ERG 141: isolate 25-50m all directions initially; for large spills consider evacuation 100m downwind; if fire involves large quantity, isolate 800m radius
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 2464 — Beryllium nitrate
Class: 5 | Placard: Oxidizer | ERG Guide: 141
Appearance: White to slightly yellow crystalline solid or powder. Odorless. Highly toxic and carcinogenic beryllium compound with oxidizing properties.
Water Reactivity: Soluble in water, forming acidic solution. No violent reaction expected.
Extinguishing: Dry chemical, CO2, water spray acceptable for fire involving this oxidizer
PPE: Level A or B minimum; SCBA required; full face protection mandatory due to extreme beryllium toxicity and carcinogenicity
Isolation: ERG 141: isolate 25-50m all directions initially; for large spills consider evacuation 100m downwind; if fire involves large quantity, isolate 800m radius
— Key Hazards —
• These substances will accelerate burning when involved in a fire.
• May explode from heat or contamination.
• Some may burn rapidly.
— 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.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
SOURCE: allfirefighter.com/hazmat/un/2464 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2464 Beryllium nitrate Cls5 ERG141 | ERG 141: isolate 25-50m all directions initially; for large spills consider evac | allfirefighter.com/hazmat/un/2464SMS / 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/2464
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Frequently Asked Questions about UN 2464
These substances will accelerate burning when involved in a fire. May explode from heat or contamination. Some may burn rapidly. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. Toxic by ingestion.
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 A or B minimum; SCBA required; full face protection mandatory due to extreme beryllium toxicity and carcinogenicity
Water reactivity: Soluble in water, forming acidic solution. No violent reaction expected.. Recommended extinguishing: Dry chemical, CO2, water spray acceptable for fire involving this oxidizer.
ERG Guide 141 recommendation: ERG 141: isolate 25-50m all directions initially; for large spills consider evacuation 100m downwind; if fire involves large quantity, isolate 800m radius
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 141 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.