UN 0074 — Diazodinitrophenol, wetted

=== IC HAZMAT BRIEFING === UN 0074 — Diazodinitrophenol, wetted Class: 1 | Placard: Explosive 1.1A | ERG Guide: 112 Appearance: Yellow to orange crystalline solid or powder. Odorless or slight characteristic odor. Highly sensitive explosive when dry; shipped wetted with water or alcohol to reduce sensitivity. Water Reactivity: No significant reaction with water; wetting agent keeps material desensitized Extinguishing: Do not use foam or water streams directly on material; use water spray from distance to keep wetted if safe to approach PPE: Level A with SCBA required; approach only if material remains wetted; do not handle if dried out; remote operations preferred Isolation: ERG 112: isolate 500m in all directions initially; evacuate 1600m downwind if fire involved; if material has dried out, treat as mass detonation hazard and evacuate 800m minimum — 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/0074 | Always use current ERG + SOP/SOGIC BRIEFING

UN0074 Diazodinitrophenol, wetted Cls1 ERG112 | allfirefighter.com/hazmat/un/0074SMS / 160 CHAR