UN 2413 — Tetrapropyl orthotitanate
Placard: Flammable. ERG Guide 128. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
UN 2413 is Tetrapropyl orthotitanate, a flammable moisture-sensitive titanate assigned to ERG Guide 128. Water can hydrolyze it while vapors create flashback hazards.
Hazard overview: FLAMMABLE moisture-sensitive titanium alkoxide liquid; vapors may ignite and form explosive mixtures with air. Hydrolyzes with water or moisture, producing alcohol and titanium-containing solids. Vapors are heavier than air and may travel to ignition sources and flash back.
Response guidance: For UN 2413, isolate the area, eliminate ignition sources, keep vapors out of drains and use SCBA in vapor or fire conditions. Cool containers from a protected distance and choose foam, dry chemical or CO2 using SDS and ERG 128.
Firefighter training notes: Training for UN 2413 should emphasize moisture reaction, corrosive fuming or hydrolysis, flammable vapor control, PPE selection, runoff containment and decontamination. Use ERG 128, SDS and local SOP.
Regulatory context: Tetrapropyl orthotitanate is regulated as a hazardous material for transport and emergency response. Storage, exposure, spill reporting, waste and fire-code duties depend on quantity, concentration and jurisdiction; verify shipping papers, SDS and local authority requirements.
Storage & handling: Tetrapropyl orthotitanate should be stored in approved flammable-liquid containers with moisture control, ventilation, spill containment and separation from heat, ignition sources, oxidizers and incompatible materials.
UN 2413 Quick Details
Common Hazards of UN 2413
- FLAMMABLE moisture-sensitive titanium alkoxide liquid; vapors may ignite and form explosive mixtures with air.
- Hydrolyzes with water or moisture, producing alcohol and titanium-containing solids.
- Vapors are heavier than air and may travel to ignition sources and flash back.
- Hydrolysis can generate heat and slippery or contaminated residues.
- Runoff to sewers may create fire or contamination hazards.
- Fire may produce carbon monoxide, titanium oxide smoke and irritating gases.
- Containers may rupture or explode when heated.
Chemical Identity & Physical Properties
Clear to pale yellow liquid with a mild alcoholic odor. Sensitive to moisture and hydrolyzes in the presence of water to form propanol and titanium compounds.
| Also known as | Titanium tetra-n-propoxideTitanium(IV) propoxideTetra-n-propyl orthotitanateTitanium n-propylateTetrapropoxytitanium |
| CAS Number | 3087-36-3 |
| Appearance | Clear to pale yellow liquid with a mild alcoholic odor. Sensitive to moisture and hydrolyzes in the presence of water to form propanol and titanium compounds. |
| Flash Point | 47°C (117°F) |
| Boiling Point | 232°C (450°F) with decomposition |
| Vapor Density | ~9 (heavier than air) |
| Water Reactivity | Reacts with water and moisture, hydrolyzing to produce propanol and titanium dioxide; avoid water contact |
Fireground Response Guidance — UN 2413
Extinguishing Media
PPE Requirements
Use positive-pressure SCBA for vapor, fire or confined-space exposure. Wear chemical-resistant gloves, eye/face protection and flame-resistant protection as appropriate.
Isolation & Evacuation
First Actions for a UN 2413 Incident
- Call 911 and the emergency response number on the shipping paper, if available.
- Keep unauthorized personnel away and establish incident command.
- Stay upwind, uphill and upstream; keep responders out of low vapor areas.
- Eliminate ignition sources if this can be done safely.
- Avoid breathing vapor, mist or smoke and avoid skin or eye contact.
- Keep water contact controlled because moisture can increase decomposition, heat or corrosive fuming.
- Do not touch damaged containers or spilled material without proper training and PPE.
- Ventilate confined spaces only after monitoring and only if properly trained and equipped.
- Use ERG Guide 128, SDS, shipping papers and air monitoring to set isolation, evacuation and entry decisions.
📋 Copy & Share Field Card
UN 2413 — Tetrapropyl orthotitanateUse for: Quick radio or face-to-face size-up. Short, structured, field-ready.
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
Use for: Quick text to command or incoming units. Fits in a single SMS.