Ethenyl acetate

C4H6O2

ethenyl acetate

CAS108-05-4
GHS02 Gefahrensymbol: Entzündbar – Flamme
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
Danger

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Identification

CAS Number
108-05-4
EC Number
203-545-4
UN Number
1301
Index Number
607-023-00-0
PubChem CID
7904

Physical-chemical properties

Molecular Formula
C4H6O2
Molar Mass
86.09 g/mol
IUPAC Name
ethenyl acetate

Chemical Identifiers

InChI
InChI=1S/C4H6O2/c1-3-6-4(2)5/h3H,1H2,2H3
InChI Key
XTXRWKRVRITETP-UHFFFAOYSA-N

Overview

Ethenyl acetate (CAS 108-05-4) is a vinyl ester compound with high reactivity and flammable properties used primarily in polymer synthesis. Ethenyl acetate, also known as vinyl acetate, represents a crucial building block in the chemical industry with the molecular formula C4H6O2 and a molecular weight of 86.09 g/mol. This colorless liquid monomer exhibits exceptional polymerization capabilities, making it indispensable for manufacturing various polymer products. The compound belongs to the vinyl ester family, sharing certain characteristics with other industrial monomers like styrene, though each maintains distinct reactivity profiles and applications. From a safety perspective, ethenyl acetate requires careful handling due to its classification as a Category 2 flammable liquid and potential carcinogen. The substance carries danger signal words and displays GHS pictograms indicating fire hazard, health hazard, and exclamation mark symbols. Its ADR Class 3 classification reflects its flammable nature, necessitating appropriate storage conditions and transportation protocols. Workers must implement proper ventilation systems and personal protective equipment when handling this material, as it may cause specific target organ toxicity following single exposure. Industrial applications of ethenyl acetate center primarily around polyvinyl acetate (PVA) production, which serves as the foundation for adhesives, paints, and coatings. The compound also finds extensive use in manufacturing polyvinyl alcohol after hydrolysis processes, contributing to textile sizing, paper coatings, and various film applications. Additionally, ethenyl acetate serves as a key intermediate in producing vinyl acetate-ethylene copolymers used in flexible packaging materials. OYSI maintains reliable supplies of ethenyl acetate to support European industrial operations requiring this essential monomer for polymer synthesis and specialty chemical applications.

Safety & Classification

Danger
Classification:

Flam. Liq. 2; Carc. 2; Acute Tox. 4; STOT SE 3

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H225

Highly flammable liquid and vapour.

H351

Suspected of causing cancer.

H332

Harmful if inhaled.

H335

May cause respiratory irritation.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Inhalation

Harmful

Measures if vapours or dust are inhaled

First Aid Actions

  • +P304IF INHALED:
  • +P340Remove person to fresh air and keep comfortable for breathing.
  • +P311Call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number1301
ADR Class3
Packing GroupII
Tunnel CodeD/E
Proper Shipping NameVinylacetat, stabilisiert
Marine PollutantNo

Frequently Asked Questions

What is ethenyl acetate?

Ethenyl acetate is an organic chemical compound with the molecular formula C4H6O2 and CAS number 108-05-4. It has a molecular weight of 86.09 g/mol and belongs to the family of vinyl esters. This colorless liquid is highly reactive due to its vinyl group, making it valuable in polymerization processes. Ethenyl acetate is classified as a flammable liquid with carcinogenic properties and requires careful handling due to its hazardous nature.

What are the physicochemical properties of ethenyl acetate?

Ethenyl acetate is a colorless liquid with a characteristic sweet, fruity odor at room temperature. It has a relatively low molecular weight of 86.09 g/mol and is moderately soluble in water while being miscible with most organic solvents. The compound is highly volatile and flammable, with a tendency to polymerize readily, especially when exposed to heat, light, or catalysts. Its vinyl structure makes it chemically reactive and prone to rapid polymerization reactions.

What is ethenyl acetate used for?

Ethenyl acetate is primarily used as a monomer in the production of polyvinyl acetate (PVA) and various copolymers. It serves as a key raw material in manufacturing adhesives, paints, coatings, and textile finishes. The compound is also utilized in the production of chewing gum base, paper coatings, and as an intermediate in organic synthesis. Its reactive vinyl group makes it valuable for creating specialty polymers with specific properties for industrial applications.

How to handle ethenyl acetate safely?

Ethenyl acetate must be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection in poorly ventilated areas. Work should be conducted in well-ventilated spaces away from ignition sources due to its flammable nature. Avoid skin and eye contact, and prevent inhalation of vapors. Use grounding equipment to prevent static electricity buildup. Handle containers carefully to prevent spills and ensure emergency equipment is readily available.

How to store ethenyl acetate correctly?

Ethenyl acetate should be stored in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and ignition sources. Keep containers tightly sealed to prevent evaporation and contamination. Store away from strong oxidizing agents, acids, and bases to prevent incompatible reactions. Maintain storage temperatures below recommended limits and use appropriate containment measures. Add stabilizers if required to prevent unwanted polymerization during extended storage periods.

What to do in case of contact with ethenyl acetate?

In case of skin contact with ethenyl acetate, immediately remove contaminated clothing and wash the affected area with plenty of soap and water for at least 15 minutes. For eye contact, flush immediately with clean water for 15 minutes and seek medical attention. If inhaled, move the person to fresh air and provide respiratory support if needed. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician if symptoms persist.

How to dispose of ethenyl acetate properly?

Ethenyl acetate must be disposed of according to local, national, and international waste regulations as hazardous chemical waste. Do not pour down drains, sewers, or onto the ground due to its toxic and flammable properties. Contact licensed waste disposal companies for proper collection and treatment. Small quantities may require neutralization or incineration at appropriate facilities. Always check current regulatory requirements and obtain proper waste classification before disposal.

How to transport ethenyl acetate?

Ethenyl acetate is classified under ADR as Class 3 (flammable liquid), Packing Group II, requiring specific transport regulations. Containers must be properly labeled with appropriate hazard pictogrammes (GHS02, GHS07, GHS08) and the danger signal word. Use approved packaging materials and ensure vehicles are equipped with appropriate safety equipment. Drivers must have proper training and documentation. Transport should avoid extreme temperatures and ensure proper ventilation during transit.

Is ethenyl acetate subject to specific regulations?

Ethenyl acetate is subject to various European regulations including REACH registration requirements and CLP classification standards. It is classified as Flam. Liq. 2, Carc. 2, Acute Tox. 4, and STOT SE 3 under CLP regulation. While not currently listed as an SVHC substance, it requires compliance with workplace exposure limits and safety data sheet requirements. Users must follow occupational health regulations and may need specific permits depending on quantities and applications in different EU member states.

Where to buy ethenyl acetate in Europe?

Ethenyl acetate is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides reliable supply chains across Europe with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical distributor, OYSI ensures product quality, appropriate packaging, and adherence to transport regulations. Contact OYSI directly for availability, technical specifications, and delivery options tailored to your specific industrial requirements and geographic location within Europe.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.