☣️ UN 2307 • CLASS 6
UN 2307 — 3-Nitro-4-chlorobenzotrifluoride
Placard: Toxic. ERG Guide 152. 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 2307 Quick Details
UN 2307
Product name: 3-Nitro-4-chlorobenzotrifluoride
DOT Class: 6
Placard type: Toxic
ERG Guide: 152 (check current ERG)
Initial isolation: ERG 152: Initial isolation 50m all directions; protective action distance 300m downwind (day), 800m (night) for large spills
Common Hazards of UN 2307
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- 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.
- Containers may explode when heated.
- Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
Chemical Identity & Physical Properties
| Also known as | 3-Nitro-4-chlorobenzotrifluoride4-Chloro-3-nitrobenzotrifluoride1-Chloro-2-nitro-4-(trifluoromethyl)benzenep-Chloro-m-nitrobenzotrifluoride |
| CAS Number | 121-17-5 |
| Appearance | Pale yellow to amber crystalline solid or liquid (melts around 34-36°C). Faint aromatic odor. Typically encountered as a molten liquid above room temperature. |
| Flash Point | 135°C (275°F) |
| Boiling Point | 222°C (432°F) |
| Vapor Density | 7.8 (much heavier than air) |
| Water Reactivity | No significant reaction with water, but insoluble |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2307
Extinguishing Media
Dry chemical, CO2, water spray (for cooling containers), alcohol-resistant foam
PPE Requirements
⚠️ Level A recommended due to high toxicity; SCBA required; chemical-resistant suit; avoid all skin contact with molten material
Isolation & Evacuation
ERG 152: Initial isolation 50m all directions; protective action distance 300m downwind (day), 800m (night) for large spills
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 152).
First Actions for a UN 2307 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.
- 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 2307 — 3-Nitro-4-chlorobenzotrifluorideHAZMAT RADIO NOTE — UN 2307
Product: 3-Nitro-4-chlorobenzotrifluoride
Class 6 / Toxic / ERG 152
PPE: Level A recommended due to high toxicity; SCBA required; chemical-resistant suit; avoid all skin contact with molten material
ISOLATION: ERG 152: Initial isolation 50m all directions; protective action distance 300m downwind (day), 800m (night) for large spills
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 2307 — 3-Nitro-4-chlorobenzotrifluoride
Class: 6 | Placard: Toxic | ERG Guide: 152
Appearance: Pale yellow to amber crystalline solid or liquid (melts around 34-36°C). Faint aromatic odor. Typically encountered as a molten liquid above room temperature.
Water Reactivity: No significant reaction with water, but insoluble
Extinguishing: Dry chemical, CO2, water spray (for cooling containers), alcohol-resistant foam
PPE: Level A recommended due to high toxicity; SCBA required; chemical-resistant suit; avoid all skin contact with molten material
Isolation: ERG 152: Initial isolation 50m all directions; protective action distance 300m downwind (day), 800m (night) for large spills
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• 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.
• Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters
SOURCE: allfirefighter.com/hazmat/un/2307 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2307 3-Nitro-4-chlorobenzotrifluoride Cls6 ERG152 | allfirefighter.com/hazmat/un/2307SMS / 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/2307
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Frequently Asked Questions about UN 2307
Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. 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. Containers may explode when heated. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.
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 recommended due to high toxicity; SCBA required; chemical-resistant suit; avoid all skin contact with molten material
Water reactivity: No significant reaction with water, but insoluble. Recommended extinguishing: Dry chemical, CO2, water spray (for cooling containers), alcohol-resistant foam.
ERG Guide 152 recommendation: ERG 152: Initial isolation 50m all directions; protective action distance 300m downwind (day), 800m (night) for large spills
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 152 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.