Product Name: Vinyltoluene
Chemical Family: Aromatic Hydrocarbon
CAS Number: 25013-15-4
Synonyms: Methylstyrene, Methylstyrol, 3-Ethenyltoluene, 4-Ethenyltoluene
Recommended Use: Monomer for polymers, resins, copolymer production
Manufacturer: Contact relevant supplier or producer for detailed address and contact numbers
Emergency Phone: Obtain nationally-listed emergency assistance numbers
GHS Classification: Flammable liquid (Category 3), Acute toxicity (Category 4, Inhalation), Skin Irritation (Category 2), Eye Irritation (Category 2A), Specific target organ toxicity – single exposure (Category 3)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor, Harmful if inhaled, Causes skin and eye irritation, May cause respiratory irritation
Pictograms: Flame, Exclamation mark
Precautionary Statements: Keep away from heat/sparks/open flames/hot surfaces, Avoid contact with skin and eyes, Use only outdoors or in well-ventilated area, Wear protective gloves/protective clothing/eye protection/face protection, In case of fire use alcohol resistant foam or water spray to extinguish
Other Hazards: Vapor forms explosive mixtures with air, Static discharge may ignite vapors, Repeated exposure may cause skin dryness or cracking
Chemical Name: Vinyltoluene
Formula: C9H10
Ingredients: Vinyltoluene (CAS 25013-15-4) 98-100%
Impurities: Trace amounts of ethylbenzene, styrene possible
Hazardous Components: Mixture of 3- and 4-vinyltoluene isomers
EC Number: 246-562-2
Inhalation: Move person to fresh air, support breathing, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash thoroughly with soap and water, get medical help if irritation continues
Eye Contact: Rinse eyes with gentle stream of water for several minutes, remove contact lenses if present, consult doctor
Ingestion: Rinse mouth, do not induce vomiting, call poison control or physician immediately
Note to Physician: Symptomatic treatment, monitor respiratory and cardiac function
Suitable Extinguishing Media: Carbon dioxide, dry chemical, alcohol-resistant foam, water spray
Unsuitable Extinguishing Media: Direct water jet may spread fire
Hazards from Combustion: Emits toxic fumes including carbon monoxide, carbon dioxide, and possibly phenols
Protective Equipment for Firefighters: Full protective clothing, self-contained breathing apparatus
Fire/Explosion Hazards: Vapors may ignite at distances, containers may rupture if heated
Special Procedures: Isolate area, remove all ignition sources, use water spray to cool exposed surfaces and control vapors
Personal Precautions: Evacuate area, avoid inhalation and skin contact, ventilate area
Protective Equipment: Chemical-resistant gloves, goggles, protective clothing, respirators for high concentration
Environmental Measures: Prevent entry into sewers, surface water, or soil
Spill Cleanup: Absorb with inert material (sand, vermiculite), place in tightly sealed containers for disposal, wash area with detergent
Notification: Report significant releases to local authorities as required
Handling: Use only with proper ventilation, keep away from heat, sparks, open flame, avoid static discharge, do not breathe vapors
Hygiene: Wash hands thoroughly after use, remove contaminated clothing promptly
Storage: Store in tightly closed containers in dry, cool, well-ventilated areas, separate from oxidizers, acids, and food products
Storage Stability: Avoid temperature extremes and direct sunlight
Special Rules: Ground containers during transfer, use explosion-proof electrical equipment
Occupational Exposure Limits: Vinyltoluene: No specific OSHA or ACGIH TLV set; use as low as reasonably achievable
Engineering Controls: Local exhaust ventilation, process enclosures, eyewash stations
Eye/Face Protection: Chemical splash goggles or full face shield
Skin Protection: Impervious gloves (nitrile, neoprene), protective aprons
Respiratory Protection: Organic vapor respirator if ventilation is inadequate
Other Controls: Wash hands before eating or smoking, do not allow contaminated clothing to remain in contact with skin
Appearance: Colorless to yellowish liquid
Odor: Aromatic, similar to styrene
Odor Threshold: Not available
pH: Not applicable
Melting Point/Range: -22°C
Boiling Point/Range: 167-173°C
Flash Point: 50°C (closed cup)
Evaporation Rate: Slower than ethyl ether
Flammability: Flammable liquid
Upper/Lower Explosive Limits: 1.1% - 6.2% (v/v) in air
Vapor Pressure: 1.5 mmHg at 20°C
Relative Density: 0.90 - 0.92 g/cm³ at 20°C
Solubility: Slightly soluble in water, miscible with most organic solvents
Partition Coefficient (n-octanol/water): 3.6
Viscosity: 1.4 mPa·s at 20°C
Auto-Ignition Temperature: 490°C
Decomposition Temperature: Not determined
Stability: Normally stable under recommended conditions
Reactive Conditions: Excessive heat, ignition sources, incompatible materials
Polymerization Risk: May polymerize violently if heated, contaminated, or in contact with initiators
Incompatibility: Strong oxidizing agents, acids, peroxides, aluminum chloride
Decomposition Products: Carbon monoxide, carbon dioxide, possibly phenols and other toxic vapors
Other Hazards: Violent polymerization increases pressure in containers, risk of rupture
Acute Toxicity: Oral LD50 (rat) ~2630 mg/kg; inhalation LC50 (rat, 4h) 6350 ppm
Skin Contact: Prolonged or repeated exposure may cause dermatitis
Eye Contact: Causes eye irritation
Inhalation: Can cause respiratory irritation, dizziness, drowsiness, headache
Chronic Effects: Prolonged exposure can damage liver, kidneys, central nervous system
Carcinogenicity: Not classified as human carcinogen by IARC, NTP, OSHA
Mutagenicity: No significant data
Reproductive Toxicity: No significant data
Routes of Exposure: Skin and eye contact, ingestion, inhalation
Aquatic Toxicity: Fish LC50 (96h): 20-30 mg/L (estimated for similar compounds)
Environmental Fate: Moderately persistent, low potential for bioaccumulation
Mobility in Soil: Low to moderate, may volatilize from soil surfaces
Degradation: Biodegradable over time but process is slow
Bioaccumulation: Log Kow suggests some tendency, but not high
Hazard to Environment: Toxic to aquatic organisms with long-term effects
Other Information: Do not release directly into waterways or drains
Waste Disposal: Incinerate at approved facility or send to hazardous waste handler
Contaminated Packaging: Empty containers may contain residues, treat as hazardous, deliver to recognized disposal company
Disposal Procedures: Follow federal, state, and local regulations for destruction of chemical
Precautions: Do not dump into any sewage, land, or natural water systems
UN Number: 2618
UN Proper Shipping Name: Vinyltoluene, stabilized
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: III
Label Requirements: Flammable liquid label
Environmental Hazards: Marine pollutant
Special Precautions: Keep away from heat, storage at proper temperature during transport, ground during transfer to control static
DOT Classification: Regulated as flammable liquid, report spills to proper authority
OSHA: Regulated as hazardous chemical
TSCA Status: Listed
SARA Title III: May be subject to reporting under Sections 311/312 Hazard Categories: Fire hazard, Immediate (acute) health hazard
California Proposition 65: Not listed
Canada (DSL/NDSL): Listed on DSL
European Union (REACH): Registered substance
Other Requirements: Observe state, provincial, and/or national regulations concerning use and limitations for workplace exposure and environmental release
