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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 8024Generated: October 24, 2026

Vinyl ether

Vinydan · Vinethene · Vinyl ether · Vinesthesin · divinyl oxide · Divinyl ether · ethenyloxyethene · (vinyloxy)ethene

https://huagongshe.com/en/chemical/8024

Vinyl ether molecular structure

Identifiers & Physical Properties

CAS No.109-93-3
Molecular formulaC4H6O
Average molar mass70.09 g/mol
Monoisotopic mass70.04186481 g/mol
SMILESC=COC=C
InChIKeyQYKIQEUNHZKYBP-UHFFFAOYSA-N
PubChem CID8024
ChEMBLCHEMBL2105883
ChEBICHEBI:81293
EC No.203-720-5
DTXSIDDTXSID5074555

Chemical & Physical Properties

XLogP1.3
Topological polar surface area9.2
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds2
Heavy atoms5
Formal charge0
Complexity32
Flash pointless than -22 °F (NFPA, 2010)
Physical DescriptionDivinyl ether, stabilized appears as a clear colorless liquid with a characteristic odor. Less dense than water. Vapors heavier than air. Toxic by inhalation.[CAMEO]
Kovats Retention Index480
Melting point-101.1°C
Boiling pointbp 28.4°
Densityd2020 0.774d420 0.773
Refractive indexnD20 1.3989
Solubility5.25g/L(37 ºC)
Henry's law constant5.4×10-4 mol/(m3Pa) at 25℃, Steward et al. (1973)
Dielectric constant3.9(20℃)
EWG's Food Scores1
FDA UNII2H2T044E11
ATC codeN01AA02
EPA Substance Registry SystemEthene, 1,1'-oxybis- (109-93-3)
UN transport numberUN 1167 (DIVINYL ETHER, STABILIZED)
Hazard class3
Packing groupI
ToxicityLC50 (3 hr in air) in mice, rats (mg/l): 146.8, 386.5 (Molitor)

Safety & Regulations

Regulatory informationThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
DOT labelFlammable Liquid
Fire hazardsExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.). Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids will float on water. Substance may be transported hot. For hybrid vehicles, ERG Guide 147 (lithium ion or sodium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. If molten aluminum is involved, refer to ERG Guide 169. (ERG, 2024)· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.· Vapors may form explosive mixtures with air.· Vapors may travel to source of ignition and flash back.· Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).· Vapor explosion hazard indoors, outdoors or in sewers.· Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.· Runoff to sewer may create fire or explosion hazard.· Containers may explode when heated.· Many liquids will float on water.· Substance may be transported hot.· For hybrid vehicles, GUIDE 147 (lithium ion or sodium ion batteries) or GUIDE 138 (sodium batteries) should also be consulted.· If molten aluminum is involved, refer to GUIDE 169.
Health hazardsExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:CAUTION: Petroleum crude oil (UN1267) may contain TOXIC hydrogen sulphide gas. Inhalation or contact with material may irritate or burn skin and eyes. Fire may 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. (ERG, 2024)CAUTION: Petroleum crude oil (UN1267) may contain TOXIC hydrogen sulphide gas.· Inhalation or contact with material may irritate or burn skin and eyes.· Fire may 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.
Hazards summaryMay irritate or burn skin and eyesInhalation can cause dizziness and suffocation[CAMEO] Divinyl ether, stabilized (UN1167) has warning of explosive polymerization. [ERG 2016] See Ethyl vinyl ether.
DOT ID and guide1167 128P
Reactive groupEthersHydrocarbons, Aliphatic UnsaturatedPolymerizable Compounds
Reactivity AlertsHighly FlammablePolymerizablePeroxidizable Compound
Reactivity ProfileEthers, such as DIVINYL ETHER, can act as bases. They form salts with strong acids and addition complexes with Lewis acids. The complex between diethyl ether and boron trifluoride is an example. Ethers may react violently with strong oxidizing agents. In other reactions, which typically involve the breaking of the carbon-oxygen bond, ethers are relatively inert. It is miscible with alcohol, acetone, chloroform and ether and must be protected from light [Hawley].
DOT Hazard ClassificationDivinyl ether, stabilizedUN1167Class 3 Flammable and combustible liquid (49 eCFR § 173.120)PG I: the degree of danger presented by the material is greatFor more information about the packing group assignment, please visit 49 eCFR § 173
Air and Water ReactionsHighly flammable. Slightly soluble in water. Oxidizes readily in air to form unstable peroxides that may explode spontaneously [Bretherick, 1979 p.151-154, 164].
Peroxide Forming ChemicalDivinyl etherD*: Other compounds that may form peroxidesBretherick'sAnon., Chemist & Druggist, 1947, 157, 258
Fire fightingExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient. CAUTION: For mixtures containing alcohol or polar solvent, alcohol-resistant foam may be more effective.SMALL FIRE: Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.LARGE FIRE: Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. For petroleum crude oil, do not spray water directly into a breached tank car. This can lead to a dangerous boil over. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzlesif this is impossible, withdraw from area and let fire burn. (ERG, 2024)
Accidental release measures· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· Keep unauthorized personnel away.· Stay upwind, uphill and/or upstream.· Ventilate closed spaces before entering, but only if properly trained and equipped.· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.· All equipment used when handling the product must be grounded.· Do not touch or walk through spilled material.· Stop leak if you can do it without risk.· Prevent entry into waterways, sewers, basements or confined areas.· A vapor-suppressing foam may be used to reduce vapors.· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.· Use clean, non-sparking tools to collect absorbed material.Large Spill· Dike far ahead of liquid spill for later disposal.· Water spray may reduce vapor, but may not prevent ignition in closed spaces.
First aidExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:Refer to the "General First Aid" section. Specific First Aid: Wash skin with soap and water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. (ERG, 2024)General First Aid:· Call 911 or emergency medical service.· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.· Move victim to fresh air if it can be done safely.· Administer oxygen if breathing is difficult.· If victim is not breathing:-- DO NOT perform mouth-to-mouth resuscitationthe victim may have ingested or inhaled the substance.-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.· Remove and isolate contaminated clothing and shoes.· For minor skin contact, avoid spreading material on unaffected skin.· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.· For severe burns, immediate medical attention is required.· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.· Keep victim calm and warm.· Keep victim under observation.· For further assistance, contact your local Poison Control Center.· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.Specific First Aid:· Wash skin with soap and water.
Exposure control and personal protection· Wear positive pressure self-contained breathing apparatus (SCBA).· Structural firefighters' protective clothing provides thermal protection but only limited chemical protection.
Nonfire spill responseExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)
Isolation and EvacuationExcerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directionsalso, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)Immediate precautionary measure· Isolate spill or leak area for at least 50 meters (150 feet) in all directions.· Consider initial downwind evacuation for at least 300 meters (1000 feet).· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directionsalso, consider initial evacuation for 800 meters (1/2 mile) in all directions.
Personal Protective Equipment (PPE)Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)polymerization hazard]:Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)
Emergency Response Planning GuidelinesCAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.CAUTION: For mixtures containing alcohol or polar solvent, alcohol-resistant foam may be more effective.Small Fire· Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.Large Fire· Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.· Avoid aiming straight or solid streams directly onto the product.· If it can be done safely, move undamaged containers away from the area around the fire.Fire Involving Tanks, Rail Tank Cars or Highway Tanks· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.· Cool containers with flooding quantities of water until well after fire is out.· For petroleum crude oil, do not spray water directly into a breached tank car. This can lead to a dangerous boil over.· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.· ALWAYS stay away from tanks in direct contact with flames.· For massive fire, use unmanned master stream devices or monitor nozzlesif this is impossible, withdraw from area and let fire burn.
Adverse effectsNeurotoxin - Acute solvent syndromeDermatotoxin - Skin burns.
UN transport numberUN 1167 (DIVINYL ETHER, STABILIZED)
ToxicityLC50 (3 hr in air) in mice, rats (mg/l): 146.8, 386.5 (Molitor)
Hazard class3
Packing groupI

Applications & Uses

Description

Divinyl ether is a mobile, colorless, inflammable liquid with a characteristic sweet odor, bp 28.4 C. Approximately 4 % ethanol is added as a stabilizer. Divinyl ether may contain 0.0077 % of a stabilizer, phenyl-α- naphthylamine, that produces a slightly reddish fluorescence.

Uses

Vinyl ether is used as an anesthetic and inorganic synthesis.

Uses

Copolymer with 3–5% polyvinyl chloride for plastic products such as clear plastic bottles; medicine (anesthetic, for brief operations only).

General Description

A clear colorless liquid with a characteristic odor. Flash point below -22°F. Less dense than water. Autoignition temperature 680°F. Slightly soluble in water; miscible with alcohol, acetone, chloroform, and ether. Must be protected from light.Vapors heavier than air. Toxic by inhalation.