☣️ UN 1601 • CLASS 6
UN 1601 — Disinfectant, solid, poisonous, n.o.s.
Placard: Toxic. ERG Guide 151. 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 1601 Quick Details
UN 1601
Product name: Disinfectant, solid, poisonous, n.o.s.
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: isolate spill 25-50m in all directions; if large spill, isolate 100m and evacuate 500m downwind; if fire, isolate 800m and evacuate 1600m downwind
Common Hazards of UN 1601
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- Avoid any skin contact.
- Fire may produce irritating, corrosive and/or toxic gases.
- Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental
- Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive
- Containers may explode when heated.
- Runoff may pollute waterways.
Chemical Identity & Physical Properties
| Also known as | Solid disinfectantToxic disinfectant solidPoisonous disinfectant compoundAntimicrobial solid agent |
| Appearance | Solid material at room temperature, varying in color depending on specific formulation. May be in powder, granular, tablet, or crystal form. Odor varies by active ingredient but often has chemical or chlorine-like smell. |
| Flash Point | Not applicable (solid disinfectant, varies by formulation) |
| Boiling Point | Not applicable (solid material, decomposes before boiling) |
| Vapor Density | Not applicable (solid material) |
| Water Reactivity | May react with water depending on formulation; some release toxic gases or heat when wet |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1601
Extinguishing Media
Dry chemical, CO2, or dry sand; avoid water fog unless necessary for cooling
PPE Requirements
⚠️ Level B minimum with SCBA; full chemical-resistant suit for spill response; avoid all skin contact; nitrile or butyl rubber gloves required
Isolation & Evacuation
ERG 151: isolate spill 25-50m in all directions; if large spill, isolate 100m and evacuate 500m downwind; if fire, isolate 800m and evacuate 1600m downwind
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 1601 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.
- Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
- For highlighted materials: see Table 1 - Initial Isolation and Protective Action Distances.
- For non-highlighted materials: increase the immediate precautionary measure distance, in the downwind
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UN 1601 — Disinfectant, solid, poisonous, n.o.s.HAZMAT RADIO NOTE — UN 1601
Product: Disinfectant, solid, poisonous, n.o.s.
Class 6 / Toxic / ERG 151
PPE: Level B minimum with SCBA; full chemical-resistant suit for spill response; avoid all skin contact; nitrile or butyl rubber gloves required
ISOLATION: ERG 151: isolate spill 25-50m in all directions; if large spill, isolate 100m and evacuate 500m downwind; if fire, isolate 800m and evacuate 1600m downwind
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 1601 — Disinfectant, solid, poisonous, n.o.s.
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Solid material at room temperature, varying in color depending on specific formulation. May be in powder, granular, tablet, or crystal form. Odor varies by active ingredient but often has chemical or chlorine-like smell.
Water Reactivity: May react with water depending on formulation; some release toxic gases or heat when wet
Extinguishing: Dry chemical, CO2, or dry sand; avoid water fog unless necessary for cooling
PPE: Level B minimum with SCBA; full chemical-resistant suit for spill response; avoid all skin contact; nitrile or butyl rubber gloves required
Isolation: ERG 151: isolate spill 25-50m in all directions; if large spill, isolate 100m and evacuate 500m downwind; if fire, isolate 800m and evacuate 1600m downwind
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• Avoid any skin contact.
• Fire may produce irritating, corrosive and/or toxic gases.
— 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.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
SOURCE: allfirefighter.com/hazmat/un/1601 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1601 Disinfectant, solid, poisonous, n.o.s. Cls6 ERG151 | allfirefighter.com/hazmat/un/1601SMS / 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/1601
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Frequently Asked Questions about UN 1601
Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. Avoid any skin contact. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause environmental Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive Containers may explode when heated. Runoff may pollute waterways.
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 B minimum with SCBA; full chemical-resistant suit for spill response; avoid all skin contact; nitrile or butyl rubber gloves required
Water reactivity: May react with water depending on formulation; some release toxic gases or heat when wet. Recommended extinguishing: Dry chemical, CO2, or dry sand; avoid water fog unless necessary for cooling.
ERG Guide 151 recommendation: ERG 151: isolate spill 25-50m in all directions; if large spill, isolate 100m and evacuate 500m downwind; if fire, isolate 800m and evacuate 1600m downwind
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 151 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.