☣️ UN 0282 • CLASS 1
Nitroguanidine; Picrite, dry
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.
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Quick details
UN 0282
Class: 1
Placard type: Explosive 1.1D
ERG: Guide 112 (check current ERG)
Isolation: ERG 112: Isolate 500m (1600 ft) all directions initially; evacuate 1600m (1 mile) downwind if fire or large spill
Chemical & Response Details
| Also known as | NitroguanidinePicriteNQ1-NitroguanidineNitraminoguanidine |
| CAS Number | 556-88-7 |
| Appearance | White to pale yellow crystalline solid or powder. Odorless or slight characteristic odor. Stable at room temperature when dry. |
| Flash Point | Not applicable (explosive solid) |
| Boiling Point | Decomposes at 232C (450F) before boiling |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Slightly soluble in water; no violent reaction but wetting increases density and sensitivity |
| Extinguishing | Do not use water or foam; use dry chemical, sand, or dry earth only for small fires; large fires require evacuation |
| PPE | ⚠️ Level A required; full encapsulation; SCBA mandatory; blast-resistant gear if approaching fire |
| Isolation | ERG 112: Isolate 500m (1600 ft) all directions initially; evacuate 1600m (1 mile) downwind if fire or large spill |
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.
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UN 0282 — Nitroguanidine; Picrite, dry HAZMAT RADIO NOTE — UN 0282
Product: Nitroguanidine; Picrite, dry
Class 1 / Explosive 1.1D / ERG 112
PPE: Level A required; full encapsulation; SCBA mandatory; blast-resistant gear if approaching fire
ISOLATION: ERG 112: Isolate 500m (1600 ft) all directions initially; evacuate 1600m (1 mile) downwind if fire or large spill
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 0282 — Nitroguanidine; Picrite, dry
Class: 1 | Placard: Explosive 1.1D | ERG Guide: 112
Appearance: White to pale yellow crystalline solid or powder. Odorless or slight characteristic odor. Stable at room temperature when dry.
Water Reactivity: Slightly soluble in water; no violent reaction but wetting increases density and sensitivity
Extinguishing: Do not use water or foam; use dry chemical, sand, or dry earth only for small fires; large fires require evacuation
PPE: Level A required; full encapsulation; SCBA mandatory; blast-resistant gear if approaching fire
Isolation: ERG 112: Isolate 500m (1600 ft) all directions initially; evacuate 1600m (1 mile) downwind if fire or large spill
— 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/0282 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN0282 Nitroguanidine; Picrite, dry Cls1 ERG112 | allfirefighter.com/hazmat/un/0282SMS / 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/0282
Related UN numbers (same class)
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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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; full encapsulation; SCBA mandatory; blast-resistant gear if approaching fire
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.