☣️ UN 2786 • CLASS 6
UN 2786 — Organotin pesticide, solid, poisonous
Placard: Toxic. ERG Guide 153. 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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UN 2786 Quick Details
UN 2786
Product name: Organotin pesticide, solid, poisonous
DOT Class: 6
Placard type: Toxic
ERG Guide: 153 (check current ERG)
Initial isolation: ERG 153: isolate spill area 25-50m in all directions; if tank/container involved in fire, isolate 800m and consider evacuation for 800m downwind
Common Hazards of UN 2786
- 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 | organotin compound pesticidetin-organic pesticide solidtributyltin-based pesticideorganotin fungicide solid |
| Appearance | Solid pesticide formulation, typically white to off-white powder or granules; may be odorless or have a faint characteristic odor. Physical appearance varies by specific organotin compound. |
| Flash Point | Not applicable (solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | No significant reaction with water, but material is toxic and should not be diluted or washed into waterways |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2786
Extinguishing Media
Dry chemical, CO2, water spray for cooling containers; avoid spreading contamination
PPE Requirements
⚠️ Level A or B with SCBA required; full body protection with chemical-resistant suit; avoid all contact with skin, eyes, and mucous membranes due to high toxicity
Isolation & Evacuation
ERG 153: isolate spill area 25-50m in all directions; if tank/container involved in fire, isolate 800m and consider evacuation for 800m downwind
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 153).
First Actions for a UN 2786 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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📋 Copy & Share Field Card
UN 2786 — Organotin pesticide, solid, poisonousHAZMAT RADIO NOTE — UN 2786
Product: Organotin pesticide, solid, poisonous
Class 6 / Toxic / ERG 153
PPE: Level A or B with SCBA required; full body protection with chemical-resistant suit; avoid all contact with skin, eyes, and mucous membranes due to high toxicity
ISOLATION: ERG 153: isolate spill area 25-50m in all directions; if tank/container involved in fire, isolate 800m and consider evacuation for 800m 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 2786 — Organotin pesticide, solid, poisonous
Class: 6 | Placard: Toxic | ERG Guide: 153
Appearance: Solid pesticide formulation, typically white to off-white powder or granules; may be odorless or have a faint characteristic odor. Physical appearance varies by specific organotin compound.
Water Reactivity: No significant reaction with water, but material is toxic and should not be diluted or washed into waterways
Extinguishing: Dry chemical, CO2, water spray for cooling containers; avoid spreading contamination
PPE: Level A or B with SCBA required; full body protection with chemical-resistant suit; avoid all contact with skin, eyes, and mucous membranes due to high toxicity
Isolation: ERG 153: isolate spill area 25-50m in all directions; if tank/container involved in fire, isolate 800m and consider evacuation for 800m 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/2786 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2786 Organotin pesticide, solid, poisonous Cls6 ERG153 | allfirefighter.com/hazmat/un/2786SMS / 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/2786
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Frequently Asked Questions about UN 2786
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 A or B with SCBA required; full body protection with chemical-resistant suit; avoid all contact with skin, eyes, and mucous membranes due to high toxicity
Water reactivity: No significant reaction with water, but material is toxic and should not be diluted or washed into waterways. Recommended extinguishing: Dry chemical, CO2, water spray for cooling containers; avoid spreading contamination.
ERG Guide 153 recommendation: ERG 153: isolate spill area 25-50m in all directions; if tank/container involved in fire, isolate 800m and consider evacuation for 800m 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.