☣️ UN 2764 • CLASS 3
UN 2764 — Triazine pesticide, liquid, flammable, poisonous
Placard: Flammable. ERG Guide 131. 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 2764 Quick Details
UN 2764
Product name: Triazine pesticide, liquid, flammable, poisonous
DOT Class: 3
Placard type: Flammable
ERG Guide: 131 (check current ERG)
Initial isolation: ERG 131: Initial isolation 50m in all directions; Protective Action Distance 100m downwind daytime, 300m downwind nighttime for small spills; evacuate immediate area if fire involves pesticide
Common Hazards of UN 2764
- 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.
Chemical Identity & Physical Properties
| Also known as | Triazine-based herbicidesTriazine pesticide solutionFlammable triazine formulationAtrazine-type pesticide (if atrazine-based)Simazine-type pesticide (if simazine-based) |
| Appearance | Clear to amber or colored liquid with mild to moderate chemical odor. Liquid at room temperature, typically dissolved in flammable organic solvents. |
| Flash Point | 23-60C (73-140F) typical for Class 3 flammable liquid formulations |
| Boiling Point | Varies widely depending on solvent carrier, typically 80-150C (176-302F) |
| Vapor Density | Heavier than air, typically 3-5 relative to air |
| Water Reactivity | No significant reaction with water, but limited water solubility; may form emulsions |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2764
Extinguishing Media
Alcohol-resistant AFFF foam, CO2, dry chemical; water spray for cooling only
PPE Requirements
⚠️ Level A or B required; SCBA mandatory; chemical-resistant suit, gloves, and boots; avoid all skin contact due to absorption hazard
Isolation & Evacuation
ERG 131: Initial isolation 50m in all directions; Protective Action Distance 100m downwind daytime, 300m downwind nighttime for small spills; evacuate immediate area if fire involves pesticide
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 131).
First Actions for a UN 2764 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 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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📋 Copy & Share Field Card
UN 2764 — Triazine pesticide, liquid, flammable, pHAZMAT RADIO NOTE — UN 2764
Product: Triazine pesticide, liquid, flammable, poisonous
Class 3 / Flammable / ERG 131
PPE: Level A or B required; SCBA mandatory; chemical-resistant suit, gloves, and boots; avoid all skin contact due to absorption hazard
ISOLATION: ERG 131: Initial isolation 50m in all directions; Protective Action Distance 100m downwind daytime, 300m downwind nighttime for small spills; evacuate immediate area if fire involves pesticide
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 2764 — Triazine pesticide, liquid, flammable, poisonous
Class: 3 | Placard: Flammable | ERG Guide: 131
Appearance: Clear to amber or colored liquid with mild to moderate chemical odor. Liquid at room temperature, typically dissolved in flammable organic solvents.
Water Reactivity: No significant reaction with water, but limited water solubility; may form emulsions
Extinguishing: Alcohol-resistant AFFF foam, CO2, dry chemical; water spray for cooling only
PPE: Level A or B required; SCBA mandatory; chemical-resistant suit, gloves, and boots; avoid all skin contact due to absorption hazard
Isolation: ERG 131: Initial isolation 50m in all directions; Protective Action Distance 100m downwind daytime, 300m downwind nighttime for small spills; evacuate immediate area if fire involves pesticide
— 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/2764 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2764 Triazine pesticide, liquid, flammable, poisonous Cls3 ERG131 | allfirefighter.com/hazmat/un/2764SMS / 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/2764
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Frequently Asked Questions about UN 2764
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 or B required; SCBA mandatory; chemical-resistant suit, gloves, and boots; avoid all skin contact due to absorption hazard
Water reactivity: No significant reaction with water, but limited water solubility; may form emulsions. Recommended extinguishing: Alcohol-resistant AFFF foam, CO2, dry chemical; water spray for cooling only.
ERG Guide 131 recommendation: ERG 131: Initial isolation 50m in all directions; Protective Action Distance 100m downwind daytime, 300m downwind nighttime for small spills; evacuate immediate area if fire involves pesticide
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.