☣️ UN 2760 • CLASS 3
Arsenical pesticide, liquid, flammable, poisonous
Placard: Flammable. 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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Quick details
UN 2760
Class: 3
Placard type: Flammable
ERG: Guide 131 (check current ERG)
Isolation: ERG 131: Isolate spill 50m (150 ft) all directions; for large spills isolate 800m (0.5 mi) downwind; evacuate immediate area if fire involved due to toxic arsenic fumes
Chemical & Response Details
| Also known as | arsenical pesticide solutionarsenic-based pesticide liquidflammable arsenic pesticideliquid arsenic agricultural chemical |
| Appearance | Flammable liquid containing arsenic compounds, typically clear to amber colored with a solvent-like or chemical odor. Physical properties vary depending on specific formulation and carrier solvent. |
| Flash Point | Below 23°C (73°F) - Class 3 flammable liquid |
| Boiling Point | Varies by formulation, typically 60-150°C (140-302°F) depending on solvent base |
| Vapor Density | Heavier than air (typically >1), vapors accumulate in low areas |
| Water Reactivity | No violent reaction with water, but may hydrolyze releasing toxic arsenic compounds; spills should not be flushed to waterways |
| Extinguishing | Alcohol-resistant foam (AR-AFFF), dry chemical, CO2; water spray for cooling only |
| PPE | ⚠️ Level A required for spill response; SCBA mandatory; full encapsulating chemical protective suit; arsenic is highly toxic and skin-absorbable; avoid all contact |
| Isolation | ERG 131: Isolate spill 50m (150 ft) all directions; for large spills isolate 800m (0.5 mi) downwind; evacuate immediate area if fire involved due to toxic arsenic fumes |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- TOXIC; may be fatal if inhaled, ingested or absorbed through skin.
- Inhalation or contact with some of these materials will irritate or burn skin and eyes.
- Methyl chloroacetate (UN2295) is an eye irritant/lachrymator (causes flow of tears).
- Fire will produce irritating, corrosive and/or toxic gases.
- Vapors may cause dizziness or asphyxiation, especially when in closed or confined areas.
- Runoff from fire control or dilution water may cause environmental contamination.
- HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
- Vapors may form explosive mixtures with air.
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.
- Ventilate closed spaces before entering, but only if properly trained and equipped.
- Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
- 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 2760 — Arsenical pesticide, liquid, flammable, HAZMAT RADIO NOTE — UN 2760
Product: Arsenical pesticide, liquid, flammable, poisonous
Class 3 / Flammable / ERG 131
PPE: Level A required for spill response; SCBA mandatory; full encapsulating chemical protective suit; arsenic is highly toxic and skin-absorbable; avoid all contact
ISOLATION: ERG 131: Isolate spill 50m (150 ft) all directions; for large spills isolate 800m (0.5 mi) downwind; evacuate immediate area if fire involved due to toxic arsenic fumes
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 2760 — Arsenical pesticide, liquid, flammable, poisonous
Class: 3 | Placard: Flammable | ERG Guide: 131
Appearance: Flammable liquid containing arsenic compounds, typically clear to amber colored with a solvent-like or chemical odor. Physical properties vary depending on specific formulation and carrier solvent.
Water Reactivity: No violent reaction with water, but may hydrolyze releasing toxic arsenic compounds; spills should not be flushed to waterways
Extinguishing: Alcohol-resistant foam (AR-AFFF), dry chemical, CO2; water spray for cooling only
PPE: Level A required for spill response; SCBA mandatory; full encapsulating chemical protective suit; arsenic is highly toxic and skin-absorbable; avoid all contact
Isolation: ERG 131: Isolate spill 50m (150 ft) all directions; for large spills isolate 800m (0.5 mi) downwind; evacuate immediate area if fire involved due to toxic arsenic fumes
— Key Hazards —
• TOXIC; may be fatal if inhaled, ingested or absorbed through skin.
• Inhalation or contact with some of these materials will irritate or burn skin and eyes.
• Methyl chloroacetate (UN2295) is an eye irritant/lachrymator (causes flow of tears).
— 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/2760 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2760 Arsenical pesticide, liquid, flammable, poisonous Cls3 ERG131 | allfirefighter.com/hazmat/un/2760SMS / 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/2760
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FAQ
TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Inhalation or contact with some of these materials will irritate or burn skin and eyes. Methyl chloroacetate (UN2295) is an eye irritant/lachrymator (causes flow of tears). Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or asphyxiation, especially when in closed or confined areas. Runoff from fire control or dilution water may cause environmental contamination. HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air.
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 spill response; SCBA mandatory; full encapsulating chemical protective suit; arsenic is highly toxic and skin-absorbable; avoid all contact
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 131 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.