Product Name: Expandable Methyl Methacrylate (MMA)
Chemical Formula: C5H8O2
Synonyms: Methyl 2-methyl-2-propenoate, MMA Monomer, Methyl Methacrylate, Polymerizable MMA
Manufacturer: [Supplier Name and Contact Details]
Recommended Use: Production of acrylic resins, plastics, and adhesives
Emergency Contact: [24-hour number or company emergency contact]
GHS Classification: Flammable liquid (Category 2), Skin irritant (Category 2), Eye irritant (Category 2A), Sensitizer (Category 1), STOT single exposure (Category 3 - Narcotic effects)
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor, causes skin and serious eye irritation, may cause allergic skin reaction, may cause drowsiness or dizziness
Pictograms: Flame, Exclamation mark
Precautionary Statements: Keep away from heat, hot surfaces, sparks, open flames, and other ignition sources. Wear protective clothing and equipment. Avoid breathing vapors. Use outdoors or in well-ventilated area. Wash hands after handling.
Potential Health Effects: Inhalation causes headache, fatigue, and respiratory irritation. Skin contact may cause reddening, blistering, and dermatitis. Eyes exposed to vapor or liquid risk pain and conjunctivitis. Prolonged contact leads to sensitization and possible allergic response. Ingestion brings abdominal pain, nausea and central nervous system effects.
Chemical: Methyl Methacrylate
CAS Number: 80-62-6
Concentration: 85-99%
Additives: Inhibitors (hydroquinone, 10-100 ppm), Polymerization Control Agents
Impurities: Trace amounts of methanol and ethylene glycol dimethacrylate as stabilizers (less than 1%)
Inhalation: Move person to fresh air immediately. Keep at rest in position comfortable for breathing. Seek medical attention for symptoms like coughing, wheezing, headache, or dizziness.
Skin Contact: Remove contaminated clothing and shoes. Rinse affected skin thoroughly with plenty of water and mild soap. Get medical help for persistent redness or irritation.
Eye Contact: Flush cautiously with water for at least 15 minutes, lifting eyelids occasionally. Remove contact lenses if present and easy to do. Continue rinsing and obtain medical advice.
Ingestion: Do not induce vomiting. Rinse mouth with water and call poison control or a doctor. If unconscious, do not give anything by mouth. Monitor breathing and pulse until medical help arrives.
Notes to Physician: Supportive care and treatment based on symptoms. Pay attention to respiratory and cardiac function.
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide, water spray (do not use high-pressure water jet).
Hazardous Decomposition Products: Toxic fumes of carbon oxides, formaldehyde, and irritating smoke.
Special Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective gear.
Fire/Explosion Hazards: Vapors heavier than air, collect in low areas and form explosive mixtures with air. Container rupture possible due to pressure build-up from heat.
Specific Firefighting Methods: Cool exposed containers by water spray, remove from hazard area if safe, stay upwind.
Personal Precautions: Evacuate area, eliminate all sources of ignition, ventilate enclosed spaces. Wear chemical-resistant gloves, goggles, and protective clothing.
Environmental Precautions: Prevent entry into drains, waterways, or soil. Contain and collect spilled material.
Methods for Cleaning Up: Absorb with earth, sand, or inert absorbent. Transfer to labeled sealed containers for disposal. Clean spill area with detergent, avoid solvents, ensure thorough ventilation.
Emergency Procedures: Isolate hazardous area, notify local authorities if large spill impacts public waterways.
Safe Handling Practices: Handle with adequate ventilation and local exhaust. Ground and bond containers during transfer. Avoid breathing vapor and contact with skin or eyes. Avoid sources of heat, sparks, or open flame.
Storage Conditions: Store in tightly closed, labeled containers in cool, dry, well-ventilated area away from sunlight, oxidizers, acids, and bases. Use only approved materials for storage, regularly check inhibitor levels.
Incompatible Materials: Strong oxidizing agents, free radical initiators, acids, bases, copper, brass, aluminum, or ferrous alloys.
Occupational Exposure Limits: OSHA PEL (USA): 100 ppm (410 mg/m³) 8-hour TWA; ACGIH TLV: 50 ppm (205 mg/m³) 8-hour TWA.
Engineering Controls: Mechanical ventilation, explosion-proof exhaust, process enclosure, and closed handling systems.
Personal Protective Equipment: Chemical splash goggles, flame-resistant gloves (nitrile or neoprene), impervious apron, antistatic footwear.
Respiratory Protection: Air-purifying respirators for concentrations exceeding occupational limits, supplied-air respirator in emergency or unknown concentrations.
Hygiene Practices: Wash hands and exposed skin after handling, avoid food and drink in work areas, remove contaminated clothing promptly.
Appearance: Colorless, mobile liquid
Odor: Strong, acrid, sharp aroma
Odor Threshold: 0.05 to 0.7 ppm
pH: Not applicable
Melting Point: -48 °C
Boiling Point: 101 °C (214 °F)
Flash Point: 10 °C (open cup)
Evaporation Rate: 3.1 (butyl acetate=1)
Flammability: Highly flammable
Lower Explosion Limit: 2.1% (V)
Upper Explosion Limit: 12.5% (V)
Vapor Pressure: 38 mmHg at 20 °C
Vapor Density: 3.5 (air=1)
Relative Density: 0.94 g/cm³
Solubility: Slightly soluble in water, miscible with most organic solvents
Partition Coefficient (n-octanol/water): 1.38
Auto-ignition Temperature: 430 °C
Decomposition Temperature: Unstable above 150 °C
Chemical Stability: Stable under recommended storage conditions, risk of rapid polymerization from heat, light, inhibitors depletion, or contamination.
Hazardous Reactions: Exothermic polymerization may occur uncontrolled. May react with oxidizing substances, alkalis, acids, and reactive metals.
Conditions to Avoid: Heat, flames, static discharges, sunlight, loss of inhibitor, contamination by incompatible materials.
Hazardous Decomposition Products: Methacrylic acid, carbon monoxide, carbon dioxide, formaldehyde in case of fire.
Incompatible Materials: Strong oxidizers, amines, acids, metals like iron and aluminum, strong bases, free radical initiators.
Acute Toxicity: LD50 (oral, rat): 7930 mg/kg, LD50 (dermal, rabbit): >5000 mg/kg, LC50 (inhalation, rat, 4hr): 7800 ppm.
Skin Corrosion/Irritation: Causes moderate to severe irritation. May cause allergic contact dermatitis.
Serious Eye Damage/Irritation: Causes irritation, redness, tearing, or blurred vision.
Respiratory or Skin Sensitization: Sensitizer through skin or inhalation; repeated exposure can result in asthmatic symptoms.
Germ Cell Mutagenicity: Negative in standard assays.
Carcinogenicity: Not listed as carcinogen by IARC, NTP, or OSHA.
Reproductive Toxicity: No evidence of reprotoxicity in animal studies.
STOT (Single/Repeated): Can cause narcotic effects, central nervous system depression.
Symptoms: Headache, weakness, dizziness, skin rash, respiratory irritation, abdominal pain.
Aquatic Toxicity: LC50 (96hr, fish): 79 mg/L; EC50 (48hr, daphnia): 69 mg/L; EC50 (algae): 170 mg/L.
Persistence and Degradability: Readily biodegradable in water and soil. Degradation half-life under environmental conditions: 1-2 weeks.
Bioaccumulative Potential: Low potential based on partition coefficient.
Mobility in Soil: Moderate mobility, risk to groundwater possible if released in large quantities.
Other Adverse Effects: Toxic to aquatic organisms on acute exposure, avoid releasing uncontrolled into water bodies.
Waste Disposal Methods: Incinerate in approved facility or treat via chemical recycling. Do not dispose to landfill or sewer. Comply with local, state, and federal regulations.
Container Handling: Triple rinse empty containers, puncture to prevent reuse, dispose as hazardous waste.
Sewage Disposal: Prohibited. Prevent from entering public storm or waste systems.
Special Precautions: Consult environmental engineer or hazardous waste disposal company for advice specific to local controls.
UN Number: 1247
Proper Shipping Name: Methyl Methacrylate, Monomer, stabilized
Class: 3 - Flammable Liquids
Packing Group: II
Label: Flammable liquid
Marine Pollutant: No
Special Transport Notes: Keep containers upright, tightly closed. Comply with IMDG, DOT, ADR, and IATA rules for flammable materials.
OSHA Status: Hazardous chemical based on 29 CFR 1910.1200
SARA Title III: Section 302 - Not listed; Section 311/312 - Acute, Fire hazard; Section 313 - Yes (MMA reportable)
TSCA Inventory: Listed
REACH Status: Registered substance
California Prop 65: Not listed
WHMIS Classification (Canada): B2: Flammable, D2B: Skin/Eye irritant
Other Local Regulations: Users must observe national and local regulations concerning handling, storage, and disposal.
