MSDS for Sinopec Vinyl Acetate Monomer

Identification

Product Name: Vinyl Acetate Monomer
Synonyms: Vinyl ethanoate, Acetic acid ethenyl ester
CAS Number: 108-05-4
Manufacturer: Sinopec
Recommended Use: Intermediate for polymers, adhesives, coatings
Emergency Contact: Refer to local emergency hotlines and company number

Hazard Identification

GHS Classification: Flammable liquid (Category 2), Acute toxicity (Category 4, inhalation and oral), Skin irritation (Category 2), Serious eye irritation (Category 2A), Carcinogenicity (Category 2)
Label Elements: Flame, Skull and Crossbones, Health hazard pictograms
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor; Harmful if inhaled or swallowed; Causes skin and eye irritation; Suspected of causing cancer
Precautionary Statements: Avoid static discharge; Keep away from heat and sparks; Prevent inhalation of vapor or mist; Do not eat, drink, or smoke when using; Wear protective gloves, eye, and face protection; Wash exposed areas after handling

Composition / Information on Ingredients

Chemical Name: Vinyl Acetate
Concentration: >99%
Impurities: Traces of water, acetic acid, polymerization inhibitors
Chemical Formula: C4H6O2
Molecular Weight: 86.09 g/mol

First Aid Measures

Inhalation: Move to fresh air, keep person at rest, provide oxygen if breathing is difficult, seek medical attention for prolonged symptoms
Skin Contact: Remove contaminated clothes, wash skin thoroughly with soap and water, seek medical advice if irritation develops
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing and obtain medical attention
Ingestion: Rinse mouth, do not induce vomiting, get immediate medical help, never give anything by mouth to an unconscious person
Most Important Symptoms: Respiratory tract irritation, skin redness, eye discomfort, drowsiness, headache, dizziness
Notes to Physician: Treat symptomatically, monitor for delayed pulmonary effects, consider risk of chemical pneumonitis

Fire-Fighting Measures

Suitable Extinguishing Media: Alcohol-resistant foam, carbon dioxide, dry chemical powder
Unsuitable Media: Do not use water jet, which can spread fire
Specific Hazards: Vapors may travel to ignition source, explosive mixtures with air, hazardous decomposition releases carbon monoxide, carbon dioxide, acetic acid, and possible carbonyl compounds
Protective Equipment: Wear self-contained breathing apparatus, full protective gear, approach fire from upwind
Special Procedures: Cool containers with water spray, prevent runoff to drains, stay clear of tanks subject to explosion

Accidental Release Measures

Personal Precautions: Evacuate area, eliminate ignition sources, provide adequate ventilation, use personal protection including gloves, goggles, and suitable respirator
Environmental Precautions: Prevent entry into sewers, basements, waterways; inform responsible authorities in case of large spill
Methods for Cleaning Up: Contain spilled material with non-combustible absorbents (sand, earth, vermiculite), collect and place into proper chemical waste containers, ventilate area, decontaminate spill site after material pickup

Handling and Storage

Handling: Work in well-ventilated areas, ground and bond containers and equipment to prevent static electricity buildup, avoid inhaling vapors and contact with skin or eyes, use explosion-proof electrical equipment, keep away from heat, sparks, open flames, or hot surfaces
Storage: Store in tightly sealed containers, keep in a cool, dry, well-ventilated area, maintain away from direct sunlight, acids, oxidizing agents, and foodstuffs, use inhibitor to avoid polymerization, segregate from incompatible materials, regularly inspect containers for leaks

Exposure Controls and Personal Protection

Occupational Exposure Limits: ACGIH TLV: 10 ppm (TWA), OSHA PEL: 10 ppm (TWA)
Engineering Controls: Local exhaust ventilation, closed systems
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles or face shield, flame-resistant clothing, appropriate respiratory protection if ventilation inadequate
Hygiene Measures: Wash hands and face after handling, take off contaminated clothing and wash before reuse, do not eat or drink in work area

Physical and Chemical Properties

Appearance: Clear, colorless liquid
Odor: Sweet, fruity, irritating
Odor Threshold: 0.07 ppm
pH: Not applicable
Melting Point: -93°C
Boiling Point: 72°C at 101.3 kPa
Flash Point: -8°C (closed cup)
Evaporation Rate: High
Flammability: Highly flammable liquid and vapor
Explosion Limits: 2.6-13.4 vol% in air
Vapor Pressure: 125 mmHg at 20°C
Vapor Density: 3.0 (air = 1)
Relative Density: 0.933 g/cm³ at 20°C
Solubility: 2.5 g/100 ml water at 20°C; miscible with most organic solvents
Partition Coefficient (log Kow): 0.73
Autoignition Temperature: 402°C
Decomposition Temperature: Not determined
Viscosity: 0.4 mPa.s at 20°C

Stability and Reactivity

Chemical Stability: Unstable under sunlight, heat, or if uninhibited; stable with proper inhibitors
Reactivity: Vigorous polymerization possible if heated, exposed to catalyst, or contaminants
Conditions to Avoid: Heat, sparks, open flame, direct sunlight, static discharge
Incompatible Materials: Strong oxidizers, strong acids, strong alkalies, amines, peroxides, metal salts
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, acetic acid, irritating fumes
Hazardous Polymerization: May occur without inhibitor

Toxicological Information

Acute Toxicity: LD50 (oral, rat): 2920 mg/kg; LD50 (dermal, rabbit): >7486 mg/kg; LC50 (inhalation, rat, 4h): 11400 mg/m³
Chronic Effects: Occupational exposure linked to respiratory tract irritation, possible nervous system depression, skin sensitization, increased risk of carcinogenicity
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Symptoms: Cough, sore throat, redness, headache, drowsiness, dizziness
Carcinogenicity: IARC: 2B (possibly carcinogenic to humans), not listed by NTP
Mutagenicity: Not evidenced by available data
Reproductive Toxicity: No conclusive evidence in studies

Ecological Information

Ecotoxicity: Moderately toxic to aquatic organisms; Fish LC50 (96h): 27-86 mg/L, Daphnia EC50 (48h): 18 mg/L
Persistence and Degradability: Biodegradable in water and soil with adequate oxygen; photodegrades in the atmosphere
Bioaccumulative Potential: Low, log Kow indicates limited bioaccumulation
Mobility in Soil: High, due to significant solubility and mobility in groundwater
Other Adverse Effects: Not identified apart from direct toxicity to aquatic life in case of accidental spill

Disposal Considerations

Waste Treatment Methods: Incinerate under controlled conditions per regional and national regulations, neutralize small amounts with water for professional hazardous waste facility
Contaminated Packaging: Rinse thoroughly before recycling or disposal, treat as chemical waste
Precautions: Avoid release to environment, consult local water authority if discharging small quantities
Legal Requirements: Follow all regional, national, and international regulations for hazardous waste

Transport Information

UN Number: 1301
Proper Shipping Name: Vinyl Acetate Monomer, stabilized
Class: 3 (Flammable liquid)
Packing Group: II
Labels: Flammable Liquid label required
Marine Pollutant: No
Special Precautions: Protect containers from physical damage, secure in upright position, avoid rough handling to prevent static discharge

Regulatory Information

US TSCA: Listed
EPCRA Section 302/304: Extremely Hazardous (TPQ: 500 lbs); reportable quantity: 5000 lbs
SARA 313: Listed as reportable for toxic release inventory
OSHA: Regulated hazardous chemical
EU Classification: F (Highly flammable), Xn (Harmful), Carc. Cat. 3
REACH: Registered substance
China Hazardous Chemicals Catalogue: Listed
Other Asia-Pacific Listings: Refer to local laws and guidance for handling, storage, and reporting thresholds