☣️ UN 1892 • CLASS 6
UN 1892 — Ethyldichloroarsine
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 1892 Quick Details
UN 1892
Product name: Ethyldichloroarsine
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: isolate spill 150m all directions; evacuate 800m downwind during day, 2500m at night; treat as chemical warfare agent
Common Hazards of UN 1892
- 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 | EthyldichloroarsineDichloroethylarsineEDEthylarsine dichlorideTL 214 |
| CAS Number | 598-14-1 |
| Appearance | Colorless to pale yellow liquid with a fruity or biting odor. Highly volatile at room temperature. Vesicant agent (blister agent) historically used as chemical warfare agent. |
| Flash Point | Not readily combustible, but will burn if involved in fire |
| Boiling Point | 156C (313F) |
| Vapor Density | 6.6 (much heavier than air) |
| Water Reactivity | Hydrolyzes slowly in water producing toxic and corrosive gases |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1892
Extinguishing Media
Dry chemical, CO2, or dry sand; water may react and spread vapors
PPE Requirements
⚠️ Level A required; full encapsulating suit with SCBA; chemical warfare agent precautions; decontamination procedures mandatory
Isolation & Evacuation
ERG 151: isolate spill 150m all directions; evacuate 800m downwind during day, 2500m at night; treat as chemical warfare agent
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 1892 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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📋 Copy & Share Field Card
UN 1892 — EthyldichloroarsineHAZMAT RADIO NOTE — UN 1892
Product: Ethyldichloroarsine
Class 6 / Toxic / ERG 151
PPE: Level A required; full encapsulating suit with SCBA; chemical warfare agent precautions; decontamination procedures mandatory
ISOLATION: ERG 151: isolate spill 150m all directions; evacuate 800m downwind during day, 2500m at night; treat as chemical warfare agent
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 1892 — Ethyldichloroarsine
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Colorless to pale yellow liquid with a fruity or biting odor. Highly volatile at room temperature. Vesicant agent (blister agent) historically used as chemical warfare agent.
Water Reactivity: Hydrolyzes slowly in water producing toxic and corrosive gases
Extinguishing: Dry chemical, CO2, or dry sand; water may react and spread vapors
PPE: Level A required; full encapsulating suit with SCBA; chemical warfare agent precautions; decontamination procedures mandatory
Isolation: ERG 151: isolate spill 150m all directions; evacuate 800m downwind during day, 2500m at night; treat as chemical warfare agent
— 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/1892 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1892 Ethyldichloroarsine Cls6 ERG151 | ERG 151: isolate spill 150m all directions; evacuate 800m downwind during day, 2 | allfirefighter.com/hazmat/un/1892SMS / 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/1892
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Frequently Asked Questions about UN 1892
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 A required; full encapsulating suit with SCBA; chemical warfare agent precautions; decontamination procedures mandatory
Water reactivity: Hydrolyzes slowly in water producing toxic and corrosive gases. Recommended extinguishing: Dry chemical, CO2, or dry sand; water may react and spread vapors.
ERG Guide 151 recommendation: ERG 151: isolate spill 150m all directions; evacuate 800m downwind during day, 2500m at night; treat as chemical warfare agent
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.