☣️ UN 1352 • CLASS 4
UN 1352 — Titanium powder, wetted with not less than 25% water
Placard: Flammable Solid. ERG Guide 170. 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 1352 Quick Details
UN 1352
Product name: Titanium powder, wetted with not less than 25% water
DOT Class: 4
Placard type: Flammable Solid
ERG Guide: 170 (check current ERG)
Initial isolation: ERG 170: isolate spill area immediate 25m in all directions; if tank/rail car involved in fire isolate 800m all directions
Common Hazards of UN 1352
- May react violently or explosively on contact with water.
- Some are transported in flammable liquids.
- May be ignited by friction, heat, sparks or flames.
- Some of these materials will burn with intense heat.
- Dusts or fumes may form explosive mixtures in air.
- Containers may explode when heated.
- May re-ignite after fire is extinguished.
- Oxides from metallic fires are a severe health hazard.
Chemical Identity & Physical Properties
| Also known as | Titanium metal powderTi powderTitanium dustWetted titanium powder |
| CAS Number | 7440-32-6 |
| Appearance | Gray to dark gray metallic powder with no odor. Solid particulate matter at room temperature, shipped wetted with water to reduce fire hazard. |
| Flash Point | Not applicable (combustible solid) |
| Boiling Point | 3287C (5949F) |
| Vapor Density | Not applicable (solid) |
| Water Reactivity | Dry powder reacts with water generating heat and hydrogen gas; wetted product is stabilized but drying increases reactivity |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1352
Extinguishing Media
Dry sand, dry chemical, soda ash; DO NOT use water on dry powder or if wetting agent has evaporated
PPE Requirements
⚠️ Level B minimum with SCBA; full protective clothing; avoid breathing dust; prevent ignition sources
Isolation & Evacuation
ERG 170: isolate spill area immediate 25m in all directions; if tank/rail car involved in fire isolate 800m all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 170).
First Actions for a UN 1352 Incident
- CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
- Stay upwind, uphill and/or upstream.
- Keep unauthorized personnel away.
- 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 50 meters (160 feet).
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📋 Copy & Share Field Card
UN 1352 — Titanium powder, wetted with not less thHAZMAT RADIO NOTE — UN 1352
Product: Titanium powder, wetted with not less than 25% water
Class 4 / Flammable Solid / ERG 170
PPE: Level B minimum with SCBA; full protective clothing; avoid breathing dust; prevent ignition sources
ISOLATION: ERG 170: isolate spill area immediate 25m in all directions; if tank/rail car involved in fire isolate 800m all directions
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 1352 — Titanium powder, wetted with not less than 25% water
Class: 4 | Placard: Flammable Solid | ERG Guide: 170
Appearance: Gray to dark gray metallic powder with no odor. Solid particulate matter at room temperature, shipped wetted with water to reduce fire hazard.
Water Reactivity: Dry powder reacts with water generating heat and hydrogen gas; wetted product is stabilized but drying increases reactivity
Extinguishing: Dry sand, dry chemical, soda ash; DO NOT use water on dry powder or if wetting agent has evaporated
PPE: Level B minimum with SCBA; full protective clothing; avoid breathing dust; prevent ignition sources
Isolation: ERG 170: isolate spill area immediate 25m in all directions; if tank/rail car involved in fire isolate 800m all directions
— Key Hazards —
• May react violently or explosively on contact with water.
• Some are transported in flammable liquids.
• May be ignited by friction, heat, sparks or flames.
— First Actions —
• CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper
• Stay upwind, uphill and/or upstream.
• Keep unauthorized personnel away.
• 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/1352 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief. Full chemical + response details.
UN1352 Titanium powder, wetted with not less than 25% water Cls4 ERG170 | allfirefighter.com/hazmat/un/1352SMS / 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/1352
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Frequently Asked Questions about UN 1352
May react violently or explosively on contact with water. Some are transported in flammable liquids. May be ignited by friction, heat, sparks or flames. Some of these materials will burn with intense heat. Dusts or fumes may form explosive mixtures in air. Containers may explode when heated. May re-ignite after fire is extinguished. Oxides from metallic fires are a severe health hazard.
CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper Stay upwind, uphill and/or upstream. Keep unauthorized personnel away.
Level B minimum with SCBA; full protective clothing; avoid breathing dust; prevent ignition sources
Water reactivity: Dry powder reacts with water generating heat and hydrogen gas; wetted product is stabilized but drying increases reactivity. Recommended extinguishing: Dry sand, dry chemical, soda ash; DO NOT use water on dry powder or if wetting agent has evaporated.
ERG Guide 170 recommendation: ERG 170: isolate spill area immediate 25m in all directions; if tank/rail car involved in fire isolate 800m all directions
No. This is a training/quick-reference aid only. Always consult the current ERG Guide 170 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.