☣️ UN 3415 • CLASS 6

Sodium fluoride, solution

Placard: Toxic. 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 3415
Class: 6
Placard type: Toxic
ERG: Guide 154 (check current ERG)
Isolation: ERG 154: Initial isolation 25m in all directions; protective action distance 0.1km daytime, 0.2km nighttime for small spills; increase distances for large spills or fire involvement
Chemical & Response Details
Also known asSodium fluoride solutionDisodium difluoride solutionNatrium fluoride solutionNaF solution
CAS Number7681-49-4
AppearanceClear to slightly cloudy aqueous solution, odorless or faint chemical odor. Typically colorless liquid at room temperature.
Flash PointNot applicable (aqueous solution, non-flammable)
Boiling PointApproximately 100C (212F), similar to water depending on concentration
Vapor DensityNot applicable (aqueous solution)
Water ReactivityAlready in aqueous solution; no significant reaction with additional water
ExtinguishingWater spray, fog, or regular foam acceptable for fire control; solution itself does not support combustion
PPE⚠️ Level B minimum recommended; chemical-resistant gloves, splash goggles, face shield; SCBA for enclosed spaces or spills; acid-resistant protective clothing
IsolationERG 154: Initial isolation 25m in all directions; protective action distance 0.1km daytime, 0.2km nighttime for small spills; increase distances for large spills or fire involvement
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 3415 — Sodium fluoride, solution
HAZMAT RADIO NOTE — UN 3415 Product: Sodium fluoride, solution Class 6 / Toxic / ERG 154 PPE: Level B minimum recommended; chemical-resistant gloves, splash goggles, face shield; SCBA for enclosed spaces or spills; acid-resistant protective clothing ISOLATION: ERG 154: Initial isolation 25m in all directions; protective action distance 0.1km daytime, 0.2km nighttime for small spills; increase distances for large spills or fire involvement ACTION: Stage upwind · Isolate · Deny entry · Request HazmatRADIO

Use for: Quick radio or face-to-face size-up. Short, structured, field-ready.

SMS WhatsApp
=== IC HAZMAT BRIEFING === UN 3415 — Sodium fluoride, solution Class: 6 | Placard: Toxic | ERG Guide: 154 Appearance: Clear to slightly cloudy aqueous solution, odorless or faint chemical odor. Typically colorless liquid at room temperature. Water Reactivity: Already in aqueous solution; no significant reaction with additional water Extinguishing: Water spray, fog, or regular foam acceptable for fire control; solution itself does not support combustion PPE: Level B minimum recommended; chemical-resistant gloves, splash goggles, face shield; SCBA for enclosed spaces or spills; acid-resistant protective clothing Isolation: ERG 154: Initial isolation 25m in all directions; protective action distance 0.1km daytime, 0.2km nighttime for small spills; increase distances for large spills or fire involvement — 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/3415 | Always use current ERG + SOP/SOGIC BRIEFING

Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.

SMS (short)
UN3415 Sodium fluoride, solution Cls6 ERG154 | allfirefighter.com/hazmat/un/3415SMS / 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/3415
Related UN numbers (same class)
Discovery block for training / quick reference. Always consult the current ERG + your SOP/SOG for operations.
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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 recommended; chemical-resistant gloves, splash goggles, face shield; SCBA for enclosed spaces or spills; acid-resistant protective clothing

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.