Chemical Name: Isobutyl Methacrylate
Synonyms: 2-Methylpropyl Methacrylate, IBMA
CAS Number: 97-86-9
Recommended Uses: Used in production of polymers and copolymers for paints, coatings, adhesives, plastics
Manufacturer: Multiple chemical suppliers worldwide, commonly produced in North America, Europe, and Asia
Emergency Contact: Chemtrec +1-800-424-9300 (US), refer to local supplier contact internationally
Product Code: Varies by supplier
Physical Hazards: Flammable liquid and vapor, classified under GHS as category 3
Health Hazards: Causes skin irritation, eye irritation, may cause allergic skin reaction, harmful if inhaled, may cause respiratory irritation, possible central nervous system effects
Signal Word: Warning
GHS Pictograms: Flame, Exclamation Mark
Hazard Statements: H226 (Flammable liquid), H315 (Causes skin irritation), H317 (May cause allergic skin reaction), H319 (Causes serious eye irritation), H335 (May cause respiratory irritation)
Precautionary Statements: Avoid breathing vapors, use outdoors or in a well-ventilated area, wear protective gloves and eye protection, keep away from heat and open flame
OSHA Hazard Classification: Regulated as hazardous, listed in chemical inventories
Main Ingredient: Isobutyl Methacrylate
Concentration: 98-100%
Other Components: May contain trace stabilizers (such as Hydroquinone at <100 ppm)
Chemical Family: Methacrylate esters, organic compounds
Impurities: Not expected to be present at hazardous concentrations
Inhalation: Remove person to fresh air, keep at rest, seek medical attention if symptoms develop
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water and soap, seek medical care if irritation persists, wash clothes before reuse
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if easy to do, continue rinsing, get medical advice if irritation continues
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical attention
Most Important Symptoms: Eye/skin redness, respiratory discomfort, headache, dizziness, allergic skin reactions
Medical Attention/Special Treatment: Supportive care based on symptoms, treat respiratory or allergic reactions as needed
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam, alcohol-resistant foam
Unsuitable Media: Water streams may not be effective for extinguishing
Specific Hazards: Vapors may form explosive mixtures with air, container rupture possible under fire conditions, hazardous combustion products include carbon oxides and irritating fumes
Protective Equipment for Firefighters: Full protective gear, isolated breathing apparatus required
Special Firefighting Procedures: Evacuate area, cool tanks with water spray, prevent run-off from entering drains or waterways
Explosion Sensitivity: Vapors heavier than air, may travel to ignition source and flash back
Personal Precautions: Evacuate unauthorized personnel, avoid inhaling vapors, use appropriate personal protective equipment
Environmental Precautions: Prevent release into drains, soil, or water bodies
Containment: Stop leak if safe, use non-sparking tools, dike with sand or inert material
Cleanup Methods: Absorb with inert material (sand, earth), collect in waste container for disposal, ventilate area thoroughly
Reporting: Notify authorities if large spills threaten environment or public safety
Precautions for Safe Handling: Use only in well-ventilated areas, keep away from heat sparks or open flame, avoid contact with skin and eyes, avoid inhalation of vapor or mist
Storage Conditions: Store in a cool, dry, ventilated location, keep container tightly closed and away from sources of ignition, incompatible with strong acids, bases, oxidizing agents, store in original container or approved bulk packaging
Incompatibilities: Excess heat, strong oxidizers, acids, bases, peroxides, amines
Safe Transfer: Ground and bond all equipment, use spark-proof tools and explosion-proof equipment
Special Handling Requirements: Designate area for use, post hazard signs, store away from food products
Exposure Limits: OSHA PEL not established for this compound, ACGIH threshold limit values not set, use precautionary principles
Engineering Controls: Good general ventilation required, local exhaust recommended, explosion-proof ventilation systems preferred
Eye Protection: Chemical splash goggles or face shield
Skin Protection: Impermeable gloves (nitrile, neoprene), coveralls, aprons recommended
Respiratory Protection: Organic vapor respirator if exposure limits exceeded or ventilation inadequate
Hygiene Measures: Wash hands and exposed skin after handling, do not eat or drink during handling
Other Controls: Eyewash stations, safety showers in work area, prohibit smoking and ignition sources
Appearance: Colorless liquid
Odor: Characteristic, acrid odor
Odor Threshold: Not precisely determined
pH: Not applicable
Melting Point: -60°C
Boiling Point: 155°C
Flash Point: 48°C (closed cup)
Evaporation Rate: Slower than ether
Flammability: Flammable liquid
Upper / Lower Flammable Limit: 1.4% to 8.2% (v/v)
Vapor Pressure: 2.5 mmHg at 20°C
Vapor Density: Heavier than air
Relative Density: 0.87 (water = 1)
Solubility: Slightly soluble in water, miscible with most organic solvents
Partition Coefficient (n-octanol/water): 2.65
Autoignition Temperature: 421°C
Decomposition Temperature: Not determined
Viscosity: 0.8 mPa·s at 20°C
Chemical Stability: Stable under recommended use and storage
Possibility of Hazardous Reactions: May polymerize violently, especially with heat or contaminants, inhibitors (such as Hydroquinone) added for stability
Incompatible Materials: Strong oxidizing agents, acids, bases, peroxides, nitric acid, amines
Hazardous Decomposition Products: Methacrylic acid, carbon monoxide, carbon dioxide, other irritating and/or toxic fumes
Conditions to Avoid: Heat, flame, sunlight, contamination with peroxides or reducing agents
Polymerization: May occur if uninhibited, especially if heated or contaminated
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Oral LD50 (rat): ~10,000 mg/kg; Dermal LD50 (rabbit): >5,000 mg/kg; Inhalation LC50 (rat, 4hr): >3,000 ppm
Skin Corrosion/Irritation: Causes moderate skin irritation
Eye Damage/Irritation: Causes moderate/severe irritation
Respiratory or Skin Sensitization: May cause allergic skin response in some individuals
Chronic Toxicity: Prolonged/repeated exposure may cause dermatitis, possible central nervous system effects
Mutagenicity: No evidence in standard tests
Carcinogenicity: Not classified as carcinogen by IARC, NTP or OSHA
Reproductive Toxicity: No strong evidence for reproductive harm
Target Organs: Eyes, skin, respiratory system, central nervous system
Ecotoxicity: Harmful to aquatic life; LC50 (fish, 96hr): 18.9 mg/L (Pimephales promelas); EC50 (daphnia, 48hr): 47.3 mg/L
Persistence and Degradability: Not readily biodegradable, but slowly degrades in environment
Bioaccumulative Potential: Moderate potential; log Kow 2.65 suggests some tendency to bioaccumulate
Mobility in Soil: Expected to have moderate mobility, may volatilize from soil and water surfaces
Other Adverse Effects: Contributes to photochemical smog, toxic to aquatic organisms
Waste Disposal Methods: Incinerate in approved facility, follow all local, regional, national guidelines
Contaminated Packaging: Empty containers may contain residue, follow chemical waste procedures, puncture and dispose per hazardous waste regulations
Do Not: Pour into sewer, waterways or ordinary trash
Special Instructions: Notify appropriate agency in case of large spillage, transport only in approved waste containers
UN Number: UN 2283
Proper Shipping Name: Isobutyl Methacrylate
Hazard Class: 3 (Flammable liquid)
Packing Group: III
Environmental Hazards: Marine pollutant (depending on quantity and route)
Transport Labels: Flammable Liquid 3
Special Precautions for User: Avoid direct sunlight, ensure container integrity, ground containers during transfer
US Regulations: Listed on TSCA inventory, subject to SARA Section 311/312 hazard categories (fire, acute health, reactive)
Canada: Listed on DSL/NDSL, WHMIS Class B2, D2B (flammable, toxic)
EU: Classified per REACH and CLP, requires appropriate hazard labeling
International: Covered by GHS regulations, restrictions may apply for transport and workplace exposures
Other Regulations: Local occupational exposure limits may apply, PPE required per safety standards
