☣️ UN 1135 • CLASS 6
UN 1135 — Ethylene chlorohydrin
Placard: Toxic. ERG Guide 131. 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.
Ethylene chlorohydrin is a colorless liquid with a faint, sweet, ether-like odor, commonly used in various industrial applications. It is essential to handle this substance with care due to its toxic nature.
Hazard overview: Ethylene chlorohydrin is toxic and may be fatal if inhaled, ingested, or absorbed through the skin, causing irritation or burns to skin and eyes. Prolonged exposure to its vapors can be hazardous to human health.
Response guidance: In case of a spill, evacuate the area immediately and use alcohol-resistant foam, CO2, or dry chemical to extinguish the fire. Wear a self-contained breathing apparatus and a full chemical-resistant suit to minimize exposure.
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UN 1135 Quick Details
UN 1135
Product name: Ethylene chlorohydrin
DOT Class: 6
Placard type: Toxic
ERG Guide: 131 (check current ERG)
Initial isolation: ERG 131: isolate spill/leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions
Common Hazards of UN 1135
- 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
Ethylene chlorohydrin is a colorless liquid with a faint, sweet, ether-like odor, miscible with water and most organic solvents.
| Also known as | 2-Chloroethanol2-Chloroethyl alcoholEthylene chlorhydrinGlycol chlorohydrinBeta-chloroethyl alcohol |
| CAS Number | 107-07-3 |
| Appearance | Colorless liquid with a faint, sweet, ether-like odor. Miscible with water and most organic solvents. |
| Flash Point | 60°C (140°F) |
| Boiling Point | 128-130°C (262-266°F) |
| Vapor Density | 2.8 (heavier than air) |
| Water Reactivity | Miscible with water; no violent reaction but forms toxic solutions |
Chemical details are general reference only. Always verify with current SDS, ERG, and SOP/SOG.
Fireground Response Guidance — UN 1135
Extinguishing Media
Alcohol-resistant foam, CO2, dry chemical; water spray may be used to reduce vapors
PPE Requirements
⚠️ Level A or B required; SCBA mandatory; full chemical-resistant suit; material is highly toxic by all routes of exposure
A Level A or B personal protective equipment, including a self-contained breathing apparatus and a full chemical-resistant suit, is required when handling ethylene chlorohydrin.
Isolation & Evacuation
ERG 131: isolate spill/leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions
Always confirm protective actions with the current edition of the Emergency Response Guidebook (ERG Guide 131).
First Actions for a UN 1135 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
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📋 Copy & Share Field Card
UN 1135 — Ethylene chlorohydrinHAZMAT RADIO NOTE — UN 1135
Product: Ethylene chlorohydrin
Class 6 / Toxic / ERG 131
PPE: Level A or B required; SCBA mandatory; full chemical-resistant suit; material is highly toxic by all routes of exposure
ISOLATION: ERG 131: isolate spill/leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in 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 1135 — Ethylene chlorohydrin
Class: 6 | Placard: Toxic | ERG Guide: 131
Appearance: Colorless liquid with a faint, sweet, ether-like odor. Miscible with water and most organic solvents.
Water Reactivity: Miscible with water; no violent reaction but forms toxic solutions
Extinguishing: Alcohol-resistant foam, CO2, dry chemical; water spray may be used to reduce vapors
PPE: Level A or B required; SCBA mandatory; full chemical-resistant suit; material is highly toxic by all routes of exposure
Isolation: ERG 131: isolate spill/leak area immediately for at least 50m in all directions; if tank/rail car involved in fire, isolate 800m in all directions
— Key Hazards —
• 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).
— First Actions —
• 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.
SOURCE: allfirefighter.com/hazmat/un/1135 | Always use current ERG + SOP/SOGIC BRIEFING
Use for: Incident command briefing, staging area whiteboard, or pre-entry team brief.
UN1135 Ethylene chlorohydrin Cls6 ERG131 | ERG 131: isolate spill/leak area immediately for at least 50m in all directions; | allfirefighter.com/hazmat/un/1135SMS / 160 CHAR
Use for: Quick text to command or incoming units. Fits in a single SMS.
⚠️ Quick-reference only. Always use current ERG + SOP/SOG for incident-specific actions.
Page: https://allfirefighter.com/hazmat/un/ethylene-chlorohydrin-un-1135
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Frequently Asked Questions about UN 1135
Yes, UN 1135 is toxic and may be fatal if inhaled, ingested, or absorbed through the skin.
A Level A or B personal protective equipment, including a self-contained breathing apparatus and a full chemical-resistant suit, is required.
Evacuate the area immediately, isolate the spill/leak area, and use alcohol-resistant foam, CO2, or dry chemical to extinguish the fire.
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.