☣️ UN 1485 • CLASS 5
Potassium chlorate
Placard: Oxidizer. 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.
Advertisement
Quick details
UN 1485
Class: 5
Placard type: Oxidizer
ERG: Guide 140 (check current ERG)
Isolation: ERG 140: isolate 50m all directions; if tank/rail car involved in fire isolate 800m and consider evacuation
Chemical & Response Details
| Also known as | Chlorate of potashPotassium chlorate(V)PotcrateBerthollet saltFekabit |
| CAS Number | 3811-04-9 |
| Appearance | White crystalline solid or powder. Odorless. Cooling, saline taste. |
| Flash Point | Not applicable (oxidizing solid) |
| Boiling Point | 400C (752F) - decomposes |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Soluble in water; no violent reaction but increases oxidizing potential of solution |
| Extinguishing | Water spray, dry chemical, CO2; avoid organic materials and combustibles near oxidizer |
| PPE | ⚠️ Level B minimum; SCBA required; avoid all ignition sources and contamination with organics |
| Isolation | ERG 140: isolate 50m all directions; if tank/rail car involved in fire isolate 800m and consider evacuation |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Common hazards (high level)
- These substances will accelerate burning when involved in a fire.
- Some may decompose explosively when heated or involved in a fire.
- May explode from heat or contamination.
- Some will react explosively with hydrocarbons (fuels).
- May ignite combustibles (wood, paper, oil, clothing, etc.).
- Containers may explode when heated.
- Runoff may create fire or explosion hazard.
- Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or
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
- Consider initial downwind evacuation for at least 100 meters (330 feet).
Advertisement
📋 Copy & Share
UN 1485 — Potassium chlorate HAZMAT RADIO NOTE — UN 1485
Product: Potassium chlorate
Class 5 / Oxidizer / ERG 140
PPE: Level B minimum; SCBA required; avoid all ignition sources and contamination with organics
ISOLATION: ERG 140: isolate 50m all directions; if tank/rail car involved in fire isolate 800m and consider evacuation
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 1485 — Potassium chlorate
Class: 5 | Placard: Oxidizer | ERG Guide: 140
Appearance: White crystalline solid or powder. Odorless. Cooling, saline taste.
Water Reactivity: Soluble in water; no violent reaction but increases oxidizing potential of solution
Extinguishing: Water spray, dry chemical, CO2; avoid organic materials and combustibles near oxidizer
PPE: Level B minimum; SCBA required; avoid all ignition sources and contamination with organics
Isolation: ERG 140: isolate 50m all directions; if tank/rail car involved in fire isolate 800m and consider evacuation
— Key Hazards —
• These substances will accelerate burning when involved in a fire.
• Some may decompose explosively when heated or involved in a fire.
• May explode from heat or contamination.
— 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/1485 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1485 Potassium chlorate Cls5 ERG140 | ERG 140: isolate 50m all directions; if tank/rail car involved in fire isolate 8 | allfirefighter.com/hazmat/un/1485SMS / 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/1485
Advertisement
FAQ
These substances will accelerate burning when involved in a fire. Some may decompose explosively when heated or involved in a fire. May explode from heat or contamination. Some will react explosively with hydrocarbons (fuels). May ignite combustibles (wood, paper, oil, clothing, etc.). Containers may explode when heated. Runoff may create fire or explosion hazard. Inhalation, ingestion or contact (skin, eyes) with vapors or substance may cause severe injury, burns or
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; avoid all ignition sources and contamination with organics
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 140 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.