☣️ UN 2994 • CLASS 6
Arsenical pesticide, liquid, poisonous
Placard: Toxic. 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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Quick details
UN 2994
Class: 6
Placard type: Toxic
ERG: Guide 151 (check current ERG)
Isolation: ERG 151: Isolate spill 25-50m all directions; for large spills isolate 100m and evacuate 300m downwind; extreme toxicity requires expanded safety zones
Chemical & Response Details
| Also known as | Arsenical pesticide solutionLiquid arsenic pesticideArsenical insecticide liquidArsenic-based pesticide |
| Appearance | Liquid pesticide formulation containing arsenic compounds. Color and odor vary depending on formulation and additives; may be clear to colored liquid with characteristic pesticide odor. |
| Flash Point | Varies by formulation and carrier solvent; typically 23C to 61C (73F to 142F) for common petroleum-based carriers |
| Boiling Point | Varies by formulation and carrier solvent; typically 100C to 200C (212F to 392F) |
| Vapor Density | Greater than 1 (heavier than air); specific value depends on carrier solvent |
| Water Reactivity | No significant reaction with water, though arsenic compounds may dissolve or disperse |
| Extinguishing | Alcohol-resistant foam, dry chemical, CO2; avoid high-pressure water streams that may spread contamination |
| PPE | ⚠️ Level A required for unknown concentrations or major spills; Level B minimum with SCBA and full chemical-resistant suit; no skin contact permitted due to severe absorption hazard |
| Isolation | ERG 151: Isolate spill 25-50m all directions; for large spills isolate 100m and evacuate 300m downwind; extreme toxicity requires expanded safety zones |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- 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.
First actions (field-minded)
- 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 2994 — Arsenical pesticide, liquid, poisonous HAZMAT RADIO NOTE — UN 2994
Product: Arsenical pesticide, liquid, poisonous
Class 6 / Toxic / ERG 151
PPE: Level A required for unknown concentrations or major spills; Level B minimum with SCBA and full chemical-resistant suit; no skin contact permitted due to severe absorption hazard
ISOLATION: ERG 151: Isolate spill 25-50m all directions; for large spills isolate 100m and evacuate 300m downwind; extreme toxicity requires expanded safety zones
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 2994 — Arsenical pesticide, liquid, poisonous
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: Liquid pesticide formulation containing arsenic compounds. Color and odor vary depending on formulation and additives; may be clear to colored liquid with characteristic pesticide odor.
Water Reactivity: No significant reaction with water, though arsenic compounds may dissolve or disperse
Extinguishing: Alcohol-resistant foam, dry chemical, CO2; avoid high-pressure water streams that may spread contamination
PPE: Level A required for unknown concentrations or major spills; Level B minimum with SCBA and full chemical-resistant suit; no skin contact permitted due to severe absorption hazard
Isolation: ERG 151: Isolate spill 25-50m all directions; for large spills isolate 100m and evacuate 300m downwind; extreme toxicity requires expanded safety zones
— 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/2994 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2994 Arsenical pesticide, liquid, poisonous Cls6 ERG151 | allfirefighter.com/hazmat/un/2994SMS / 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/2994
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FAQ
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 for unknown concentrations or major spills; Level B minimum with SCBA and full chemical-resistant suit; no skin contact permitted due to severe absorption hazard
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.