☣️ UN 1760 • CLASS 8
Compounds, tree or weed killing, liquid (corrosive)
Placard: Corrosive. 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 1760
Class: 8
Placard type: Corrosive
ERG: Guide 154 (check current ERG)
Isolation: ERG 154: Isolate spill 25-50m all directions; evacuate immediate area if fire; consider evacuation 800m downwind for major spill
Chemical & Response Details
| Also known as | Corrosive herbicide liquidCorrosive pesticide liquidTree killing compound liquidWeed killing compound liquidHerbicidal corrosive solution |
| Appearance | Varies widely - typically colored liquid (amber, brown, or clear) with chemical or solvent odor. Corrosive nature causes immediate tissue damage on contact. |
| Flash Point | Varies by formulation - typically 23-60C (73-140F) for organic solvent-based products |
| Boiling Point | Varies by formulation - typically 100-200C (212-392F) depending on solvent base |
| Vapor Density | Varies - typically 3-5 (heavier than air) for organic solvent formulations |
| Water Reactivity | May react with water generating heat; dilution may be hazardous due to corrosivity |
| Extinguishing | Alcohol-resistant foam recommended; dry chemical for fires; avoid water spray on bulk liquid |
| PPE | ⚠️ Level B minimum with SCBA; acid/alkali resistant suit, gloves, and boots required; face shield and eye protection mandatory |
| Isolation | ERG 154: Isolate spill 25-50m all directions; evacuate immediate area if fire; consider evacuation 800m downwind for major spill |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
- 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
- Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive
- Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).
- Corrosives in contact with metals may evolve flammable hydrogen gas.
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 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 1760 — Compounds, tree or weed killing, liquid HAZMAT RADIO NOTE — UN 1760
Product: Compounds, tree or weed killing, liquid (corrosive)
Class 8 / Corrosive / ERG 154
PPE: Level B minimum with SCBA; acid/alkali resistant suit, gloves, and boots required; face shield and eye protection mandatory
ISOLATION: ERG 154: Isolate spill 25-50m all directions; evacuate immediate area if fire; consider evacuation 800m downwind for major spill
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 1760 — Compounds, tree or weed killing, liquid (corrosive)
Class: 8 | Placard: Corrosive | ERG Guide: 154
Appearance: Varies widely - typically colored liquid (amber, brown, or clear) with chemical or solvent odor. Corrosive nature causes immediate tissue damage on contact.
Water Reactivity: May react with water generating heat; dilution may be hazardous due to corrosivity
Extinguishing: Alcohol-resistant foam recommended; dry chemical for fires; avoid water spray on bulk liquid
PPE: Level B minimum with SCBA; acid/alkali resistant suit, gloves, and boots required; face shield and eye protection mandatory
Isolation: ERG 154: Isolate spill 25-50m all directions; evacuate immediate area if fire; consider evacuation 800m downwind for major spill
— Key Hazards —
• TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury
• Contact with molten substance may cause severe burns to skin and eyes.
• Avoid any skin contact.
— 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/1760 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1760 Compounds, tree or weed killing, liquid (corrosive) Cls8 ERG154 | allfirefighter.com/hazmat/un/1760SMS / 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/1760
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FAQ
TOXIC and/or CORROSIVE; inhalation, ingestion or skin contact with material may cause severe injury 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 Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Corrosives in contact with metals may evolve flammable hydrogen gas.
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 with SCBA; acid/alkali resistant suit, gloves, and boots required; face shield and eye protection mandatory
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 154 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.