☣️ UN 0214 • CLASS 1
UN 0214 — Trinitrobenzene, dry
Placard: Explosive 1.1D. ERG Guide 112. 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 0214 Quick Details
UN 0214
Product name: Trinitrobenzene, dry
DOT Class: 1
Placard type: Explosive 1.1D
ERG Guide: 112 (check current ERG)
Initial isolation: ERG 112: isolate 500m (1640 ft) in all directions; evacuate 1600m (1 mile) downwind if fire or leak involves large quantities
Common Hazards of UN 0214
- Mass explosion hazard — entire load may detonate simultaneously.
- Severe blast overpressure and fragmentation.
- Sensitive to heat, shock, and friction.
- Secondary fire and debris hazard.
Chemical Identity & Physical Properties
| Also known as | TNB1,3,5-Trinitrobenzenesym-TrinitrobenzeneTrinitrobenzolBenzene trinitrate |
| CAS Number | 99-35-4 |
| Appearance | Pale yellow to tan crystalline solid with no distinct odor. Exists as ortho-, meta-, and para-isomers, with 1,3,5-isomer being most common. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (decomposes violently at approximately 315C/599F) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Insoluble in water; no significant reaction with water but highly sensitive to initiation when dry |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 0214
Extinguishing Media
Do not use water or foam; use dry chemical or sand for small fires; evacuate area for large fires
PPE Requirements
⚠️ Level A required; full explosive ordnance disposal (EOD) protective equipment recommended; SCBA mandatory; handle only when wet with minimum 10% water
Isolation & Evacuation
ERG 112: isolate 500m (1640 ft) in all directions; evacuate 1600m (1 mile) downwind if fire or leak involves large quantities
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 112).
First Actions for a UN 0214 Incident
- CALL 911. Then call emergency response telephone number on shipping paper.
- Establish large isolation zone — minimum 500 meters in all directions.
- Stage upwind, uphill; limit personnel to essential responders only.
- Request Hazmat + law enforcement + additional resources immediately.
- Do not fight fire — evacuate and isolate; let burn if no life safety risk.
- Protect exposures only if safe and directed by command.
- Consult current ERG Guide 112 and follow SOP/SOG.
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📋 Copy & Share Field Card
UN 0214 — Trinitrobenzene, dryHAZMAT RADIO NOTE — UN 0214
Product: Trinitrobenzene, dry
Class 1 / Explosive 1.1D / ERG 112
PPE: Level A required; full explosive ordnance disposal (EOD) protective equipment recommended; SCBA mandatory; handle only when wet with minimum 10% water
ISOLATION: ERG 112: isolate 500m (1640 ft) in all directions; evacuate 1600m (1 mile) downwind if fire or leak involves large quantities
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 0214 — Trinitrobenzene, dry
Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112
Appearance: Pale yellow to tan crystalline solid with no distinct odor. Exists as ortho-, meta-, and para-isomers, with 1,3,5-isomer being most common.
Water Reactivity: Insoluble in water; no significant reaction with water but highly sensitive to initiation when dry
Extinguishing: Do not use water or foam; use dry chemical or sand for small fires; evacuate area for large fires
PPE: Level A required; full explosive ordnance disposal (EOD) protective equipment recommended; SCBA mandatory; handle only when wet with minimum 10% water
Isolation: ERG 112: isolate 500m (1640 ft) in all directions; evacuate 1600m (1 mile) downwind if fire or leak involves large quantities
— Key Hazards —
• Mass explosion hazard — entire load may detonate simultaneously.
• Severe blast overpressure and fragmentation.
• Sensitive to heat, shock, and friction.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper.
• Establish large isolation zone — minimum 500 meters in all directions.
• Stage upwind, uphill; limit personnel to essential responders only.
• Request Hazmat + law enforcement + additional resources immediately.
SOURCE: allfirefighter.com/hazmat/un/0214 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0214 Trinitrobenzene, dry Cls1 ERG112 | ERG 112: isolate 500m (1640 ft) in all directions; evacuate 1600m (1 mile) downw | allfirefighter.com/hazmat/un/0214SMS / 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/0214
Related UN Numbers in Class 1
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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Frequently Asked Questions about UN 0214
Mass explosion hazard — entire load may detonate simultaneously. Severe blast overpressure and fragmentation. Sensitive to heat, shock, and friction. Secondary fire and debris hazard.
CALL 911. Then call emergency response telephone number on shipping paper. Establish large isolation zone — minimum 500 meters in all directions. Stage upwind, uphill; limit personnel to essential responders only.
Level A required; full explosive ordnance disposal (EOD) protective equipment recommended; SCBA mandatory; handle only when wet with minimum 10% water
Water reactivity: Insoluble in water; no significant reaction with water but highly sensitive to initiation when dry. Recommended extinguishing: Do not use water or foam; use dry chemical or sand for small fires; evacuate area for large fires.
ERG Guide 112 recommendation: ERG 112: isolate 500m (1640 ft) in all directions; evacuate 1600m (1 mile) downwind if fire or leak involves large quantities
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 112 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.