☣️ UN 2864 • CLASS 6
UN 2864 — Potassium metavanadate
Placard: Toxic. ERG Guide 151. 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 2864 Quick Details
UN 2864
Product name: Potassium metavanadate
DOT Class: 6
Placard type: Toxic
ERG Guide: 151 (check current ERG)
Initial isolation: ERG 151: isolate spill 25m all directions; if fire isolate 800m all directions initially
Common Hazards of UN 2864
- Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
- 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
- Containers may explode when heated.
- Runoff may pollute waterways.
Chemical Identity & Physical Properties
| Also known as | Potassium vanadateVanadate potassiumPotassium monovanadateVanadic acid potassium salt |
| CAS Number | 13769-43-2 |
| Appearance | White to pale yellow crystalline solid or powder. Odorless. Stable under normal conditions. |
| Flash Point | Not applicable (inorganic solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Soluble in water forming alkaline solution; no violent reaction |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 2864
Extinguishing Media
Dry chemical, CO2, water spray acceptable for extinguishing surrounding fires
PPE Requirements
⚠️ Level B minimum; SCBA required; impervious gloves and suit to prevent skin contact; avoid all exposure routes
Isolation & Evacuation
ERG 151: isolate spill 25m all directions; if fire isolate 800m all directions initially
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 151).
First Actions for a UN 2864 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 2864 — Potassium metavanadateHAZMAT RADIO NOTE — UN 2864
Product: Potassium metavanadate
Class 6 / Toxic / ERG 151
PPE: Level B minimum; SCBA required; impervious gloves and suit to prevent skin contact; avoid all exposure routes
ISOLATION: ERG 151: isolate spill 25m all directions; if fire isolate 800m all directions initially
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 2864 — Potassium metavanadate
Class: 6 | Placard: Toxic | ERG Guide: 151
Appearance: White to pale yellow crystalline solid or powder. Odorless. Stable under normal conditions.
Water Reactivity: Soluble in water forming alkaline solution; no violent reaction
Extinguishing: Dry chemical, CO2, water spray acceptable for extinguishing surrounding fires
PPE: Level B minimum; SCBA required; impervious gloves and suit to prevent skin contact; avoid all exposure routes
Isolation: ERG 151: isolate spill 25m all directions; if fire isolate 800m all directions initially
— Key Hazards —
• Highly toxic, may be fatal if inhaled, ingested or absorbed through skin.
• Avoid any skin contact.
• Fire may produce irritating, corrosive and/or toxic gases.
— 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/2864 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN2864 Potassium metavanadate Cls6 ERG151 | ERG 151: isolate spill 25m all directions; if fire isolate 800m all directions i | allfirefighter.com/hazmat/un/2864SMS / 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/2864
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Frequently Asked Questions about UN 2864
Highly toxic, may be fatal if inhaled, ingested or absorbed through skin. 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 Containers may explode when heated. Runoff may pollute waterways.
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; SCBA required; impervious gloves and suit to prevent skin contact; avoid all exposure routes
Water reactivity: Soluble in water forming alkaline solution; no violent reaction. Recommended extinguishing: Dry chemical, CO2, water spray acceptable for extinguishing surrounding fires.
ERG Guide 151 recommendation: ERG 151: isolate spill 25m all directions; if fire isolate 800m all directions initially
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 151 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.