Product Name: Isobutyl Acrylate
Synonyms: 2-Propenoic acid, 2-methylpropyl ester
CAS Number: 106-63-8
Recommended Use: Intermediate for acrylic resins and polymers, adhesives, sealants
Manufacturer: Contact manufacturer directly for supplier-specific information
Emergency Phone Number: Refer to the local or national poison centers or CHEMTREC for emergencies
Product Code: Refer to packaging or distributor documentation for specific lot identification
Classification: Flammable liquid (Category 2), Skin Irritant (Category 2), Eye Irritant (Category 2A), Skin Sensitizer (Category 1), Environmental Hazard (Aquatic Chronic 3)
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor. Causes skin irritation. Causes serious eye irritation. May cause an allergic skin reaction. Harmful to aquatic life with long-lasting effects.
Precautionary Statements: Keep away from heat, sparks, open flames. No smoking. Avoid breathing vapor. Wash hands after handling. Wear protective gloves, eye protection, face protection.
Emergency Overview: Rapid vapor formation, risk of flash fire. Vapor may irritate respiratory tract.
Chemical Name: Isobutyl Acrylate
CAS Number: 106-63-8
Concentration: 99% or higher
Impurities: Trace stabilizers, possible acrylic acid residues
Additives: Typically contains polymerization inhibitor (often MEHQ or hydroquinone at low ppm levels)
Inhalation: Move to fresh air. Provide oxygen or artificial respiration if needed. Call a physician if symptoms develop.
Skin Contact: Remove contaminated clothing and wash exposed skin with plenty of soap and water. Seek medical attention if irritation persists or rash occurs.
Eye Contact: Rinse eyes with plenty of water for at least 15 minutes, occasionally lifting eyelids. Seek medical care without delay.
Ingestion: Do not induce vomiting. Rinse mouth with water. Get immediate medical help.
Note for Medical Personnel: Symptoms include irritation, allergic response, or chemical burns. Provide symptomatic treatment and monitor respiratory function.
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide, water spray (to cool containers)
Special Hazards: Vapors may form explosive mixtures with air. Combustion produces toxic gases such as carbon oxides.
Protective Equipment: Firefighters use self-contained breathing apparatus and chemical-resistant protective clothing.
Firefighting Procedures: Approach from upwind, evacuate personnel from area, use water to keep exposed containers cool, contain run-off to prevent entry into waterways.
Explosion Hazard: High vapor density, may travel to ignition sources, flashback possible.
Personal Precautions: Wear appropriate PPE including gloves, goggles, and protective clothing. Avoid breathing vapors and ensure proper ventilation.
Environmental Precautions: Prevent contamination of soil, surface, and ground water. Block entry into drains, sewers, and waterways.
Spill Containment: Absorb small spills with inert materials such as sand or earth. For large spills, dike and contain.
Cleanup Methods: Collect absorbed material in suitable containers for disposal in accordance with regulations. Wash residual area with water and detergent.
Evacuation: Remove non-essential personnel from affected area.
Handling: Work in well-ventilated areas, avoid inhalation of vapor or contact with skin/eyes, use spark-proof tools, ground and bond containers. Prevent formation of explosive concentrations in air.
Storage Conditions: Store in tightly closed containers in cool, dry, well-ventilated space away from sources of ignition, direct sunlight, and incompatible substances such as strong acids, bases, oxidizers, and reducing agents.
Special Requirements: Maintain inhibitor levels to prevent polymerization, check storage temperature remains within safe range. Store away from foodstuffs.
Storage Temperature: Recommended below 30°C, avoid freezing, avoid high heat.
Occupational Exposure Limits: No ACGIH TLV or OSHA PEL established for Isobutyl Acrylate, but minimize exposure as a general practice.
Engineering Controls: Use local exhaust ventilation to keep airborne concentrations below recommended limits; work in explosion-proof hoods if necessary.
Personal Protective Equipment: Gloves (nitrile rubber), chemical safety goggles, face shield, impervious clothing, approved respirator (if vapor levels exceed recommended guidelines).
Hygienic Practices: Wash hands before eating, drinking, or smoking. Remove contaminated clothing promptly and launder before reuse.
Appearance: Colorless liquid
Odor: Acrylate, sharp, pungent
pH: Not applicable
Melting Point: -64°C
Boiling Point: 155°C
Flash Point: 38°C (closed cup)
Evaporation Rate: Moderate (compared to n-butyl acetate)
Flammability: Flammable liquid
Vapor Pressure: 2.8 mmHg at 20°C
Vapor Density: 4.2 (air = 1)
Relative Density: 0.872 g/cm³ at 20°C
Solubility: Insoluble in water, soluble in most organic solvents
Partition Coefficient (n-octanol/water): 3.06
Auto-ignition Temperature: 295°C
Decomposition Products: Acrid smoke, carbon monoxide, carbon dioxide
Chemical Stability: Stable at recommended storage conditions if properly inhibited; risk of exothermic polymerization if inhibitor level falls or material is heated.
Reactivity: Readily polymerizes in presence of heat, light, or peroxides. Avoid initiators and contamination.
Incompatible Materials: Strong oxidizers, acids, alkalis, peroxides, metal salts.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, irritating acrylate vapors.
Hazardous Polymerization: Possible, particularly if uninhibited or stored in sunlight or heat.
Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Toxicity: LD50 (oral, rat) 10,200 mg/kg; LD50 (dermal, rabbit) 11,280 mg/kg; inhalation can cause respiratory tract irritation
Skin Contact: Causes irritation, redness, may cause sensitization on prolonged exposure
Eye Contact: Severe irritation, redness, tearing
Chronic Effects: Repeated exposure may cause dermatitis, allergic response in sensitized persons
Mutagenicity, Carcinogenicity: Not identified as carcinogen or mutagen under IARC, NTP, or OSHA criteria
Symptoms of Overexposure: Irritation to skin, eyes, respiratory tract; allergic skin reaction; headache, nausea
Ecotoxicity: Harmful to aquatic life with long-lasting effects, fish and invertebrates are especially vulnerable at low concentrations
Persistence and Degradability: Moderately biodegradable, does not readily bioaccumulate
Mobility in Soil: Moderate, may leach into groundwater if released
Bioaccumulation: Low potential due to moderate partition coefficient
Other Notes: Avoid discharge into the environment, prevent release to surface waters
Product Disposal: Dispose in accordance with local, regional, and national regulations. Incineration recommended for large quantities by licensed facility. Do not release to drains or environment.
Container Disposal: Empty containers may retain hazardous residues; triple rinse and puncture before recycling or disposal.
Contaminated Packaging: Handle as hazardous waste if contaminated by Isobutyl Acrylate. Consult proper disposal authorities.
Recommended Disposal Method: High-temperature incineration with adequate pollution controls.
UN Number: 2359
Proper Shipping Name: Isobutyl Acrylate, Stabilized
Hazard Class: 3 (Flammable liquid)
Packing Group: III
Labels Required: Flammable liquid
Special Precautions: Transport only in tightly sealed, properly labeled containers. Keep away from heat, sparks, open flames during transit. Maintain inhibitor levels during extended transport.
ADR/RID, IMDG, IATA Classification: Compliant with international standards for hazardous chemicals transport.
U.S. TSCA: Listed in Toxic Substances Control Act Inventory
OSHA Hazard: Classified as hazardous under OSHA Hazard Communication Standard
EPCRA Section 313: Not subject to reporting
SARA Title III: Not listed as extremely hazardous substance
REACH Registration: Registered substance in Europe
Other Country Regulations: Subject to chemical control regulations in many jurisdictions
GHS Label Elements: Follows Globally Harmonized System for hazard communication
