☣️ UN 0079 • CLASS 1
Hexanitrodiphenylamine; Dipicrylamine
Placard: Explosive 1.1D. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
🚒☣️
⚠️ 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.
Advertisement
Quick details
UN 0079
Class: 1
Placard type: Explosive 1.1D
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: isolate 500m minimum all directions; evacuate 1600m downwind if fire or detonation risk; treat as mass explosion hazard
Chemical & Response Details
| Also known as | DipicrylamineHexyl2,2',4,4',6,6'-HexanitrodiphenylamineHNDAurantia |
| CAS Number | 131-73-7 |
| Appearance | Yellow to orange crystalline solid with no significant odor at room temperature. Exists as fine crystals or powder. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water; insoluble |
| Extinguishing | DO NOT use water or foam on burning material; use dry chemical, sand, or smother with inert material only |
| PPE | ⚠️ Level A required for spill response; full explosive ordnance disposal (EOD) protective equipment for fire; SCBA mandatory; avoid all shock, friction, and static |
| Isolation | ERG 112: isolate 500m minimum all directions; evacuate 1600m downwind if fire or detonation risk; treat as mass explosion hazard |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- Mass explosion hazard — entire load may detonate simultaneously.
- Severe blast overpressure and fragmentation.
- Sensitive to heat, shock, and friction.
- Secondary fire and debris hazard.
First actions (field-minded)
- 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.
Advertisement
📋 Copy & Share
UN 0079 — Hexanitrodiphenylamine; Dipicrylamine HAZMAT RADIO NOTE — UN 0079
Product: Hexanitrodiphenylamine; Dipicrylamine
Class 1 / Explosive 1.1D / ERG 112
PPE: Level A required for spill response; full explosive ordnance disposal (EOD) protective equipment for fire; SCBA mandatory; avoid all shock, friction, and static
ISOLATION: ERG 112: isolate 500m minimum all directions; evacuate 1600m downwind if fire or detonation risk; treat as mass explosion hazard
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 0079 — Hexanitrodiphenylamine; Dipicrylamine
Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112
Appearance: Yellow to orange crystalline solid with no significant odor at room temperature. Exists as fine crystals or powder.
Water Reactivity: No significant reaction with water; insoluble
Extinguishing: DO NOT use water or foam on burning material; use dry chemical, sand, or smother with inert material only
PPE: Level A required for spill response; full explosive ordnance disposal (EOD) protective equipment for fire; SCBA mandatory; avoid all shock, friction, and static
Isolation: ERG 112: isolate 500m minimum all directions; evacuate 1600m downwind if fire or detonation risk; treat as mass explosion hazard
— 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/0079 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0079 Hexanitrodiphenylamine; Dipicrylamine Cls1 ERG112 | allfirefighter.com/hazmat/un/0079SMS / 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/0079
Related UN numbers (same class)
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
Advertisement
FAQ
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 for spill response; full explosive ordnance disposal (EOD) protective equipment for fire; SCBA mandatory; avoid all shock, friction, and static
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.