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Mono Ethylene Glycol (MEG)
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Mono Ethylene Glycol (MEG) is a colorless, odorless, viscous liquid with a sweet taste. It is a widely used organic compound belonging to the glycol family. MEG is primarily utilized as an antifreeze agent and a raw material in the production of polyester fibers and resins. Its excellent solvent properties, low volatility, and high boiling point make it valuable across various industrial applications.
Description
Mono Ethylene Glycol (MEG) Uses
Primary Uses
- Antifreeze and Coolants
- Used extensively as an antifreeze agent in automotive and industrial cooling systems to prevent freezing and overheating.
- Component in heat transfer fluids and HVAC systems.
- Polyester Production
- Key raw material for manufacturing polyethylene terephthalate (PET) resins used in textiles, packaging (bottles), and films.
- Used in producing polyester fibers for fabrics and carpets.
- Solvent and Chemical Intermediate
- Acts as a solvent in paints, inks, adhesives, and cleaning products.
- Intermediate in producing other chemicals such as antifreeze formulations and plasticizers.
Secondary Uses
- De-icing Fluids
- Used in aircraft de-icing and runway de-icing formulations.
- Hydraulic Fluids and Brake Fluids
- Ingredient in specialized hydraulic and brake fluid formulations.
- Heat Transfer and Refrigeration
- Used in cooling towers and refrigeration systems as a heat transfer medium.
- Pharmaceutical and Personal Care
Employed as a humectant and solvent in pharmaceutical preparations and cosmetics.
PRODUCT KEY FEATURES
Basic Identification Attributes
- Chemical Name (IUPAC): Ethylene glycol
- Common/Trade Name: Mono Ethylene Glycol (MEG)
- CAS Number: 107-21-1
- HS Code: 2905.32
- Synonyms: Ethane-1,2-diol; 1,2-Dihydroxyethane
Physical & Chemical Properties
- Physical State: Clear, colorless, viscous liquid
- Color & Odor: Colorless; mild sweet odor
- Boiling Point: 197.6°C
- Melting Point: -12.9°C
- Density: 1.113–1.116 g/cm³
- Solubility: Miscible with water, alcohols, and many organic solvents
- Viscosity: Approx. 16.1 cP at 20°C
Safety & Hazard Attributes
- GHS Classification: Acute toxicity (oral and dermal), harmful if ingested; Specific target organ toxicity (repeated exposure)
- Toxicity: Toxic if swallowed; can cause central nervous system depression, kidney damage
- Exposure Limits: OSHA PEL – 50 ppm (8-hour TWA)
Storage & Handling Attributes
- Storage Conditions: Store in cool, dry, well-ventilated area away from ignition sources and incompatible materials
- Container Type: Supplied in steel drums, polyethylene containers, or tankers
- Shelf Life: Typically 12 months if stored properly
- Handling Precautions: Use gloves, goggles, and protective clothing; avoid ingestion and inhalation
Regulatory & Compliance Attributes
- Complies with REACH, OSHA, EPA, and FDA regulations (for industrial and indirect food contact use)
- Listed on TSCA inventory
Environmental & Health Impact
- Biodegradability: Readily biodegradable under aerobic conditions
- Ecotoxicity: Moderate toxicity to aquatic organisms; avoid release to water bodies
- Bioaccumulation: Low potential
Carcinogenicity/Mutagenicity: Not classified as carcinogenic
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE Required: Gloves, goggles, and protective clothing recommended
- Handling Guidelines: Use in well-ventilated areas; avoid skin contact and inhalation of vapors
- Storage Measures: Keep containers tightly closed; store away from oxidizers and acids
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if symptoms persist
- Skin Contact: Wash with soap and water; remove contaminated clothing
- Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes; seek medical attention if irritation persists
- Ingestion: Do not induce vomiting; seek immediate medical attention
Firefighting Measures
- Fire Hazards: Combustible liquid; burns with a faint smoky flame
- Extinguishing Media: Use water spray, foam, dry chemical, or COâ‚‚
- Special Precautions: Wear self-contained breathing apparatus and protective gear
- Hazardous Combustion Products: Carbon oxides, aldehydes
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