☣️ UN 1580 • CLASS 6
UN 1580 — Chloropicrin
Placard: Toxic. ERG Guide 154. 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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UN 1580 Quick Details
UN 1580
Product name: Chloropicrin
DOT Class: 6
Placard type: Toxic
ERG Guide: 154 (check current ERG)
Initial isolation: ERG 154: isolate spill 25-50m all directions; isolate 800m all directions if large spill; evacuate downwind 1600m day or 3200m night if tank/rail car involved in fire
Common Hazards of UN 1580
- TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
- Contact with molten substance may cause severe burns to skin and eyes.
- 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
- Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).
- Corrosives in contact with metals may evolve flammable hydrogen gas.
Chemical Identity & Physical Properties
| Also known as | TrichloronitromethaneNitrochloroformPSAcquiniteTri-Clor |
| CAS Number | 76-06-2 |
| Appearance | Colorless to pale yellow oily liquid with an intensely irritating odor. Denser than water and slightly soluble in water. |
| Flash Point | Not applicable (non-flammable) |
| Boiling Point | 112C (234F) |
| Vapor Density | 5.7 (much heavier than air) |
| Water Reactivity | No significant reaction with water, but slightly soluble |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1580
Extinguishing Media
Water spray, dry chemical, CO2, or foam may be used
PPE Requirements
⚠️ Level A required; full encapsulation with SCBA mandatory due to extreme toxicity; positive pressure only
Isolation & Evacuation
ERG 154: isolate spill 25-50m all directions; isolate 800m all directions if large spill; evacuate downwind 1600m day or 3200m night if tank/rail car involved in fire
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 154).
First Actions for a UN 1580 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.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- 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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📋 Copy & Share Field Card
UN 1580 — ChloropicrinHAZMAT RADIO NOTE — UN 1580
Product: Chloropicrin
Class 6 / Toxic / ERG 154
PPE: Level A required; full encapsulation with SCBA mandatory due to extreme toxicity; positive pressure only
ISOLATION: ERG 154: isolate spill 25-50m all directions; isolate 800m all directions if large spill; evacuate downwind 1600m day or 3200m night if tank/rail car involved in fire
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 1580 — Chloropicrin
Class: 6 | Placard: Toxic | ERG Guide: 154
Appearance: Colorless to pale yellow oily liquid with an intensely irritating odor. Denser than water and slightly soluble in water.
Water Reactivity: No significant reaction with water, but slightly soluble
Extinguishing: Water spray, dry chemical, CO2, or foam may be used
PPE: Level A required; full encapsulation with SCBA mandatory due to extreme toxicity; positive pressure only
Isolation: ERG 154: isolate spill 25-50m all directions; isolate 800m all directions if large spill; evacuate downwind 1600m day or 3200m night if tank/rail car involved in fire
— Key Hazards —
• TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
• Contact with molten substance may cause severe burns to skin and eyes.
• Avoid any skin contact.
— 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.
• Ventilate closed spaces before entering, but only if properly trained and equipped.
SOURCE: allfirefighter.com/hazmat/un/1580 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1580 Chloropicrin Cls6 ERG154 | ERG 154: isolate spill 25-50m all directions; isolate 800m all directions if lar | allfirefighter.com/hazmat/un/1580SMS / 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/1580
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Frequently Asked Questions about UN 1580
TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury Contact with molten substance may cause severe burns to skin and eyes. 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 Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Corrosives in contact with metals may evolve flammable hydrogen gas.
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 A required; full encapsulation with SCBA mandatory due to extreme toxicity; positive pressure only
Water reactivity: No significant reaction with water, but slightly soluble. Recommended extinguishing: Water spray, dry chemical, CO2, or foam may be used.
ERG Guide 154 recommendation: ERG 154: isolate spill 25-50m all directions; isolate 800m all directions if large spill; evacuate downwind 1600m day or 3200m night if tank/rail car involved in fire
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 154 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.