Chemical Name: Butyl Methacrylate
Synonyms: n-Butyl methacrylate, 2-Methyl-2-propenoic acid, butyl ester
CAS Number: 97-88-1
Recommended Use: Production of polymers, adhesives, paints, coatings, and sealants
Manufacturer Information: Include supplier name, address, telephone, and emergency contact details
Chemical Formula: C8H14O2
Product Codes: As assigned by suppliers or distributors
Emergency Overview: Flammable liquid with a fruity odor, can cause irritation to eyes and skin
Restrictions on Use: Industrial use only; do not use in consumer products unless supplied as part of a mixture with appropriate controls in place
Revision Date: Always refer to the current issue provided by your chemical supplier
GHS Classification: Flammable Liquid, Acute Toxicity (Oral and Inhalation), Skin/Eye Irritant
Signal Word: Danger
Hazard Statements: May cause fire; vapor can cause drowsiness or dizziness; harmful if swallowed, inhaled, or contacted with skin; causes serious eye and skin irritation
Precautionary Statements: Keep away from heat/sparks/open flames, wear protective gloves/eye protection, avoid breathing vapors, wash thoroughly after handling
Pictograms: Flame, exclamation mark
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Target Organs: Eyes, skin, respiratory tract, central nervous system
Potential Environmental Effects: Possible aquatic toxicity if released in large quantities
Component: n-Butyl Methacrylate
CAS Number: 97-88-1
Concentration: Typically >99%
Impurities: May contain traces of inhibitor (usually hydroquinone or related compounds to prevent polymerization)
Additives: No significant additives beyond stabilizers
Inhalation: Move the person to fresh air, keep them comfortable, seek medical advice if symptoms develop; avoid direct mouth-to-mouth resuscitation, use barrier device
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek medical advice if irritation or redness persists
Eye Contact: Rinse immediately with plenty of clean water for at least 15 minutes, lift eyelids occasionally, consult an ophthalmologist if symptoms remain
Ingestion: Do not induce vomiting, rinse mouth, provide water to drink if conscious, seek immediate medical attention
Medical Notes: Treatment is symptomatic and supportive; show this MSDS to the physician
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, alcohol-resistant foam, do not use water jets directly on the flames
Specific Hazards: Vapors may form explosive mixtures with air; polymerization may occur with heat and fire, leading to violent rupture
Protective Equipment for Firefighters: Self-contained breathing apparatus with full facepiece, full protective clothing
Special Procedures: Evacuate area, use water spray to keep container cool but avoid direct streams; prevent spread of vapors
Combustion Products: Carbon oxides, methyl methacrylate, irritating fumes, and smoke
Flash Point: Approximately 41°C (106°F)
Explosion Limits: Lower: 1.2%, Upper: 8.2% (by volume in air)
Personal Precautions: Keep unprotected persons away, ventilate area, use personal protective equipment to prevent exposure
Environmental Precautions: Prevent entry into drains, surface water, and soil, contain spill where possible
Clean-up Methods: Absorb with inert material (sand, earth, vermiculite), transfer to a suitable container for disposal, avoid direct skin contact
Reporting: Notify relevant authorities if significant amounts have escaped into the environment
Handling: Use only in well-ventilated areas, avoid breathing vapors, keep away from sources of ignition, do not eat, drink, or smoke while handling, avoid contact with eyes and skin, ensure proper bonding and grounding when transferring materials
Storage: Store in tightly closed containers, protect from heat and sunlight, keep away from oxidizers, acids, and other incompatible substances, store in cool, dry, well-ventilated place with temperature controls, inhibitor should be present in all containers
Labeling: Ensure proper hazard labeling, do not remove labels from containers
Incompatible Materials: Strong acids, bases, oxidizing agents, and reducing agents
Occupational Exposure Limits: OSHA PEL: 100 ppm TWA; ACGIH TLV: 50 ppm TWA
Engineering Controls: Use local exhaust ventilation, explosion-proof equipment, fume hoods
Personal Protective Equipment: Protective nitrile gloves, chemical splash goggles, flame-retardant laboratory coat, if risk of exposure exists use air-purifying respirator with an organic vapor cartridge
Hygiene Measures: Remove contaminated clothing, wash hands before eating or drinking, do not carry contaminated clothing home
Environmental Controls: Use containment to prevent spillage, collect and treat run-off from emergency response
Appearance: Colorless to pale yellow liquid
Odor: Sweet, fruity odor
Odor Threshold: Approximately 0.1 ppm
pH: Not applicable (non-aqueous liquid)
Melting Point/Freezing Point: -75°C (-103°F)
Boiling Point/Range: 161°C (322°F)
Flash Point: 41°C (106°F) (closed cup)
Evaporation Rate: Slower than ethyl ether
Flammability: Flammable liquid
Upper/Lower Flammability Limits: Lower: 1.2%, Upper: 8.2%
Vapor Pressure: 2 mmHg @ 20°C
Vapor Density: 4.9 (air = 1)
Relative Density: 0.89 (water = 1)
Solubility: Insoluble in water, miscible with most organic solvents
Partition Coefficient (n-octanol/water): 2.95
Auto-ignition Temperature: 372°C (702°F)
Decomposition Temperature: Not determined
Viscosity: 0.7 mPa·s (20°C)
Chemical Stability: Stable under recommended conditions with proper inhibitor
Conditions to Avoid: Heat, sunlight, sources of ignition, absence of air (promotes polymerization)
Incompatible Materials: Strong oxidizers, acids, bases, reducing agents, peroxides
Hazardous Decomposition Products: Methacrylic acid fumes, carbon monoxide, carbon dioxide, other toxic gases
Polymerization Risk: May polymerize exothermically if heated or contaminated, inhibitor is essential
Acute Toxicity: Oral LD50 (rat): 10,000 mg/kg; Inhalation LC50 (rat): 4,800 ppm/4h
Skin Corrosion/Irritation: Causes skin irritation upon prolonged or repeated contact; may produce allergic reaction
Serious Eye Damage/Irritation: Eye irritant, redness, tearing, and pain possible
Respiratory or Skin Sensitization: May cause allergic skin reaction, known skin sensitizer in case of repeated exposure
Chronic Effects: Possible liver and kidney effects at high doses in animal studies
Mutagenicity/Carcinogenicity/Reproductive Toxicity: Not classified as mutagenic, carcinogenic, or reproductive toxin based on available data
General Symptoms: Headache, dizziness, fatigue, nausea, respiratory tract irritation may follow exposure to vapors
Aquatic Toxicity: Harmful to aquatic life at high concentrations; LC50 (fish, 96h): approx. 10 mg/L
Persistance and Degradability: Readily biodegradable under aerobic conditions, but potential for oxygen depletion in water
Bioaccumulation Potential: Low to moderate potential based on partition coefficient
Mobility in Soil: Evaporates before significant partitioning; binds moderately to organic matter
Other Adverse Effects: May contribute to photochemical smog as a volatile organic compound (VOC)
Disposal Methods: Incinerate in an approved facility according to local regulations; do not pour into drains or surface waters
Contaminated Packaging: Handle as hazardous waste; rinse containers before recycling or disposal, ensure vented before crushing
Disposal of Spills: Absorb on inert material, collect in sealed waste containers, label as flammable hazardous waste
Regulatory Considerations: Must comply with local, regional, and national hazardous waste regulations
UN Number: 2226
Proper Shipping Name: n-Butyl methacrylate, stabilized
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Label Required: Flammable liquid (Class 3)
Marine Pollutant: Not classified as a marine pollutant under IMDG Code
Special Precautions: Keep container upright and secured, ensure inhibitor present during shipment, avoid release to environment
Transport in Bulk: Regulated under Annex II of MARPOL 73/78 and IBC Code for international sea transport
TSCA (USA): Listed
DSL (Canada): Listed
REACH (EU): Registered
SARA Title III: Section 313 (Toxic Chemicals): Listed
OSHA Hazard Communication: Classified as hazardous
WHMIS (Canada): Class B2 (Flammable Liquids), Class D2B (Toxic/irritant)
Other Information: Always refer to national and local regulations for restrictions on use and required safety measures
