☣️ UN 1508 • CLASS 5
Strontium perchlorate
Placard: Oxidizer. 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 1508
Class: 5
Placard type: Oxidizer
ERG: Guide 140 (check current ERG)
Isolation: ERG 140: Initial isolation 100m all directions; if tank/railcar involved in fire isolate 800m and consider evacuation
Chemical & Response Details
| Also known as | Perchloric acid strontium saltStrontium diperchlorateStrontium(II) perchlorate |
| CAS Number | 13450-97-0 |
| Appearance | White to colorless crystalline solid or powder, odorless. Hygroscopic and typically absorbs moisture from air. |
| Flash Point | Not applicable (oxidizer solid) |
| Boiling Point | Not applicable (decomposes before boiling) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Soluble in water with no violent reaction, but dissolution is exothermic and may produce heat |
| Extinguishing | Dry chemical, sand, or earth only; do not use water streams directly on bulk material |
| PPE | ⚠️ Level B minimum with full face SCBA; chemical-resistant suit due to oxidizer and potential thermal hazard |
| Isolation | ERG 140: Initial isolation 100m all directions; if tank/railcar 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).
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UN 1508 — Strontium perchlorate HAZMAT RADIO NOTE — UN 1508
Product: Strontium perchlorate
Class 5 / Oxidizer / ERG 140
PPE: Level B minimum with full face SCBA; chemical-resistant suit due to oxidizer and potential thermal hazard
ISOLATION: ERG 140: Initial isolation 100m all directions; if tank/railcar 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 1508 — Strontium perchlorate
Class: 5 | Placard: Oxidizer | ERG Guide: 140
Appearance: White to colorless crystalline solid or powder, odorless. Hygroscopic and typically absorbs moisture from air.
Water Reactivity: Soluble in water with no violent reaction, but dissolution is exothermic and may produce heat
Extinguishing: Dry chemical, sand, or earth only; do not use water streams directly on bulk material
PPE: Level B minimum with full face SCBA; chemical-resistant suit due to oxidizer and potential thermal hazard
Isolation: ERG 140: Initial isolation 100m all directions; if tank/railcar 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/1508 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1508 Strontium perchlorate Cls5 ERG140 | ERG 140: Initial isolation 100m all directions; if tank/railcar involved in fire | allfirefighter.com/hazmat/un/1508SMS / 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/1508
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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 with full face SCBA; chemical-resistant suit due to oxidizer and potential thermal hazard
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.