UN 1098 — Allyl alcohol
Placard: Toxic. ERG Guide 131. Training/quick-reference only — use current ERG + SOP/SOG for incident-specific actions.
Allyl alcohol is a highly toxic substance that requires immediate attention in case of a spill or leak. It is essential to handle this material with extreme caution due to its potential to cause severe harm or even death.
Hazard overview: Inhalation or contact with allyl alcohol can irritate or burn skin and eyes, and may be fatal if inhaled, ingested or absorbed through skin. Prolonged exposure to this substance can lead to severe health complications, including respiratory problems and organ damage.
Response guidance: In the event of an allyl alcohol spill, it is crucial to isolate the area immediately and evacuate anyone in the surrounding vicinity. Emergency responders should wear Level B protective gear, including a self-contained breathing apparatus and a full chemical-resistant suit, to minimize the risk of exposure.
UN 1098 Quick Details
Common Hazards of UN 1098
- TOXIC; may be fatal if inhaled, ingested or absorbed through skin.
- Inhalation or contact with some of these materials will irritate or burn skin and eyes.
- Methyl chloroacetate (UN2295) is an eye irritant/lachrymator (causes flow of tears).
- Fire will produce irritating, corrosive and/or toxic gases.
- Vapors may cause dizziness or asphyxiation, especially when in closed or confined areas.
- Runoff from fire control or dilution water may cause environmental contamination.
- HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
- Vapors may form explosive mixtures with air.
Chemical Identity & Physical Properties
Allyl alcohol is a colorless to pale yellow liquid with a pungent, mustard-like odor, and is highly flammable and volatile at room temperature.
| Also known as | 2-Propen-1-olPropenyl alcoholVinyl carbinol3-Hydroxypropene |
| CAS Number | 107-18-6 |
| Appearance | Colorless to pale yellow liquid with a pungent, mustard-like odor. Highly flammable and volatile at room temperature. |
| Flash Point | -21C (-6F) |
| Boiling Point | 97C (207F) |
| Vapor Density | 2.0 (heavier than air) |
| Water Reactivity | Soluble in water; no violent reaction but forms toxic solutions |
Fireground Response Guidance — UN 1098
Extinguishing Media
PPE Requirements
When handling allyl alcohol, it is recommended to wear Level B minimum protective gear, including a self-contained breathing apparatus and a full chemical-resistant suit, to prevent severe toxicity and skin contact.
Isolation & Evacuation
First Actions for a UN 1098 Incident
- 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 for at least 50 meters (150 feet) in all directions.
- 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
📋 Copy & Share Field Card
UN 1098 — Allyl alcoholUse 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.