Product Name: Methoxyethyl Methacrylate
Chemical Name: 2-Methoxyethyl methacrylate
Synonyms: 2-Methoxyethoxy-2-methylprop-2-enoate, MEMA
CAS Number: 2370-63-0
Recommended Use: Monomer for polymerization, chemical manufacturing
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GHS Classification: Flammable liquids (Category 3), Acute toxicity - Oral (Category 4), Skin irritation (Category 2), Eye irritation (Category 2A), Specific Target Organ Toxicity - Single Exposure (Category 3; respiratory tract irritation)
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statements: Keep away from heat and open flames. Wear protective gloves, clothing, and eye protection. Use only in a well-ventilated area. Avoid breathing vapor. Wash thoroughly after handling.
Appearance and Odor: Clear, colorless liquid; mild characteristic odor.
Routes of Exposure: Skin contact, inhalation, eye contact, ingestion.
Potential Health Effects: May cause burning of eyes and skin, headache, nausea, or respiratory distress.
Chemical: 2-Methoxyethyl Methacrylate
CAS Number: 2370-63-0
Concentration: >98%
Impurities/Additives: Contaminants may include inhibitors or stabilizers (e.g. MEHQ, phenothiazine under 200 ppm) to prevent polymerization.
Inhalation: Move person into fresh air. Seek medical advice if symptoms occur.
Skin Contact: Remove contaminated clothing. Rinse skin immediately with plenty of water.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present. Continue rinsing. If irritation persists, get prompt medical care.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical attention.
Notes for Doctors: Treat symptomatically. May cause irritation or burns depending on exposure.
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide.
Specific Hazards: Vapors can form explosive mixtures with air. Hazardous combustion products may include carbon oxides and irritating vapors.
Protective Equipment: Firefighters should wear self-contained breathing apparatus, gloves, and standard protective clothing.
Advice for Firefighters: Water spray may be used to cool fire-exposed containers, but direct stream on liquid may scatter fire. Avoid inhaling fumes.
Personal Precautions: Evacuate area. Remove ignition sources. Use personal protective equipment including chemical-resistant gloves and safety goggles.
Environmental Precautions: Prevent spillage from entering drains, watercourses, or soil.
Methods for Cleaning Up: Absorb with inert material such as sand or diatomaceous earth. Sweep up and place in suitable container for disposal. Ventilate area.
Handling: Work in well-ventilated areas. Keep containers tightly closed. Prevent buildup of vapor. Ground containers to prevent static discharge. Avoid contact with skin, eyes, and clothing.
Storage: Keep cool and store away from direct sunlight, heat, and ignition sources. Use containers made of compatible materials. Store in a dry, well-ventilated place. Ensure storage area has spill containment measures.
Exposure Limits: No established OSHA or ACGIH limits, but exposure should be minimized using best practices.
Engineering Controls: Use local exhaust ventilation, especially in enclosed areas.
Personal Protective Equipment: Safety goggles, chemical-resistant gloves, protective clothing. Use approved respirator if ventilation is inadequate.
Hygiene Measures: Wash hands and exposed skin after handling. Do not eat, drink, or smoke during use.
Appearance: Clear, colorless liquid
Odor: Mild, characteristic odor
Odor Threshold: No specific data available
pH: Not applicable
Melting Point/Freezing Point: -62°C
Boiling Point and Range: 197–200°C
Flash Point: 78°C (closed cup)
Evaporation Rate: No data available
Flammability: Flammable
Vapor Pressure: 0.2 mmHg @ 20°C
Vapor Density: 5.2 (air = 1)
Relative Density: 1.04–1.06 g/cm³
Solubility: Miscible with organic solvents; slightly soluble in water
Partition Coefficient (n-octanol/water): 1.2–1.4
Auto-ignition Temperature: 245°C
Decomposition Temperature: No data available
Viscosity: 2.3 mPa·s @ 20°C
Chemical Stability: Stable under recommended storage and handling conditions. Sensitive to light and heat.
Possibility of Hazardous Reactions: Polymerization can occur, especially from heat, UV light, peroxides, or contamination.
Conditions to Avoid: Avoid heat, sparks, open flames, exposure to sunlight, and incompatible materials.
Incompatible Materials: Strong oxidizers, acids, bases, free radical initiators, peroxides.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, irritating organic vapors.
Acute Toxicity (oral): LD50 (rat): approx. 1,500–2,000 mg/kg
Acute Toxicity (dermal): LD50 (rabbit): approx. 3,680 mg/kg
Skin Corrosion/Irritation: Causes skin irritation
Serious Eye Damage/Irritation: Causes serious eye irritation
Respiratory or Skin Sensitization: Sensitization is possible from repeated exposure
Other Information: Short-term studies show potential for headache, nausea, dizziness from inhalation. Prolonged or repeated skin contact may cause dermatitis.
Ecotoxicity: Toxic to aquatic life with long-lasting effects
Fish: LC50 (96h, Oryzias latipes): approx. 25 mg/l
Daphnia: EC50 (48h): approx. 60 mg/l
Persistence and Degradability: Not readily biodegradable
Bioaccumulative Potential: Low to moderate due to partition coefficient
Mobility in Soil: Moderate mobility; potential to contaminate water sources
Other Adverse Effects: Hazardous to aquatic environment; spills or uncontrolled discharge can harm ecosystem balance.
Disposal Methods: Incinerate or dispose of in accordance with local, regional, or national regulations for hazardous organic chemicals.
Contaminated Packaging: Containers and packaging should be disposed of as hazardous waste. Clean thoroughly before recycling or disposal.
Precautions: Do not dispose of into drains or environment. Label and store waste until proper disposal.
UN Number: UN 1993
Proper Shipping Name: Flammable liquid, n.o.s. (Methoxyethyl Methacrylate)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Labels: Flammable Liquid
Sea (IMDG): Class 3
Air (ICAO/IATA): Class 3
Special Precautions: Keep packages upright and well-ventilated, avoid transport with reactive chemicals or foodstuffs.
US Regulatory Information: Listed on TSCA. Subject to SARA Title III, Section 311/312 (Fire Hazard, Acute Health Hazard). Not subject to SARA Title III Section 313.
European Regulatory: Listed on EINECS/ELINCS, requires labelling and risk management under REACH.
Labeling: GHS labels and hazard statements required.
Other Regulation: Workplace exposure and storage subject to national and local regulations. Consult local, state, and federal regulations to ensure compliance.
