☣️ UN 2810 • CLASS 6
UN 2810 — Compounds, tree or weed killing, liquid (toxic)
Placard: Toxic. ERG Guide 153. 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 2810 Quick Details
UN 2810
Product name: Compounds, tree or weed killing, liquid (toxic)
DOT Class: 6
Placard type: Toxic
ERG Guide: 153 (check current ERG)
Initial isolation: ERG 153: isolate spill 25-50m in all directions; if tank/cargo involved in fire, isolate 800m and consider evacuation for 1600m downwind
Common Hazards of UN 2810
- TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
- Methyl bromoacetate (UN2643) is an eye irritant/lachrymator (causes flow of tears).
- 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
- Combustible material: may burn but does not ignite readily.
- When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion
Chemical Identity & Physical Properties
| Also known as | Herbicide liquidTree killing compoundWeed killing compoundPhytocide solutionArboricide liquid |
| Appearance | Various colored liquids (amber, brown, or clear) with odors ranging from mild to pungent, depending on active ingredient formulation. Liquid at room temperature. |
| Flash Point | Varies by formulation; typically 60-93C (140-200F) for petroleum-based carriers, some formulations may be lower |
| Boiling Point | Varies by formulation; typically 100-200C (212-392F) depending on solvent base and active ingredients |
| Vapor Density | Generally heavier than air (>1); typical range 2-4 depending on carrier solvent |
| Water Reactivity | No significant reaction with water; may form emulsions or separate layers depending on formulation |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2810
Extinguishing Media
Alcohol-resistant foam (AR-AFFF), dry chemical, CO2; regular foam may be ineffective with some formulations
PPE Requirements
⚠️ Level B minimum required; SCBA, chemical-resistant suit, gloves and boots mandatory; avoid all skin contact due to dermal toxicity
Isolation & Evacuation
ERG 153: isolate spill 25-50m in all directions; if tank/cargo involved in fire, isolate 800m and consider evacuation for 1600m downwind
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 153).
First Actions for a UN 2810 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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UN 2810 — Compounds, tree or weed killing, liquidHAZMAT RADIO NOTE — UN 2810
Product: Compounds, tree or weed killing, liquid (toxic)
Class 6 / Toxic / ERG 153
PPE: Level B minimum required; SCBA, chemical-resistant suit, gloves and boots mandatory; avoid all skin contact due to dermal toxicity
ISOLATION: ERG 153: isolate spill 25-50m in all directions; if tank/cargo involved in fire, isolate 800m and consider evacuation for 1600m downwind
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 2810 — Compounds, tree or weed killing, liquid (toxic)
Class: 6 | Placard: Toxic | ERG Guide: 153
Appearance: Various colored liquids (amber, brown, or clear) with odors ranging from mild to pungent, depending on active ingredient formulation. Liquid at room temperature.
Water Reactivity: No significant reaction with water; may form emulsions or separate layers depending on formulation
Extinguishing: Alcohol-resistant foam (AR-AFFF), dry chemical, CO2; regular foam may be ineffective with some formulations
PPE: Level B minimum required; SCBA, chemical-resistant suit, gloves and boots mandatory; avoid all skin contact due to dermal toxicity
Isolation: ERG 153: isolate spill 25-50m in all directions; if tank/cargo involved in fire, isolate 800m and consider evacuation for 1600m downwind
— Key Hazards —
• TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
• Methyl bromoacetate (UN2643) is an eye irritant/lachrymator (causes flow of tears).
• Contact with molten substance may cause severe burns to skin and eyes.
— 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/2810 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2810 Compounds, tree or weed killing, liquid (toxic) Cls6 ERG153 | allfirefighter.com/hazmat/un/2810SMS / 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/2810
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Frequently Asked Questions about UN 2810
TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury Methyl bromoacetate (UN2643) is an eye irritant/lachrymator (causes flow of tears). 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 Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion
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 B minimum required; SCBA, chemical-resistant suit, gloves and boots mandatory; avoid all skin contact due to dermal toxicity
Water reactivity: No significant reaction with water; may form emulsions or separate layers depending on formulation. Recommended extinguishing: Alcohol-resistant foam (AR-AFFF), dry chemical, CO2; regular foam may be ineffective with some formulations.
ERG Guide 153 recommendation: ERG 153: isolate spill 25-50m in all directions; if tank/cargo involved in fire, isolate 800m and consider evacuation for 1600m downwind
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 153 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.