Monoethylene glycol (MEG), also known as Ethylene glycol, 1,2-ethanediol, and 1,2-Dihydroxyethane, is a slightly viscous and odourless liquid with the chemical formula C2H6O2.
MEG is used in different industries. Some uses of MEG include:
- Anti-freezing additive
- Dehydrating
- Textile conditioning
- Solvent for dyes in textile and leather finishing
- Water-based coating
Monoethylene glycol (MEG) is considered safe when handled and stored according to safety guidelines. However, it’s essential to use appropriate personal protective equipment and follow safety precautions.
Characterization of Monoethylene glycol (MEG)
Ethylene glycol exhibits excellent solvent properties, making it suitable for various industrial applications. Additionally, MEG has low volatility and low viscosity, contributing to its stability in different environments. Some properties of this substance include:
- Its molar mass is 07 g. mol-1.
- Its melting point is -12.9 °C.
- It is decomposed at 111 °C.
- Its density is 1.11 gcm–3
Applications of Monoethylene glycol (MEG)
MEG is a vital component in the manufacture of a wide range of products, including resins, heat transfer fluids, automotive antifreezes, water-based adhesives, latex paints and asphalt emulsions. Some uses of MEG include:
Antifreeze and coolants
MEG is a primary ingredient in antifreeze formulations due to its ability to lower the freezing point of water. It is used in automotive coolants to prevent overheating in engines.
Plastics industry
MEG is a key component in the production of polyethylene terephthalate (PET) resins, used in making bottles for different products in food industry.
Solvent
MEG is used as a solvent in applications such as ink, adhesives, and paint industries.
Heat transfer fluids
MEG is used in industrial heat transfer agents. It is useful in both heating and cooling systems, particularly where there is a risk of freezing or overheating.
Chemical synthesis
MEG is used in the production of various chemical intermediates used in making solvents, plasticizers, and other chemicals.
Cosmetics
MEG is used as a solvent in formulations like lotions, shampoos, and other skincare products, to enhance moisture retention.
Monoethylene glycol (MEG) production
Ethylene glycol is produced from ethylene, via the intermediate ethylene oxide. Ethylene oxide reacts with water to produce ethylene glycol.
C2H4O + H2O → HO–CH2CH2–OH
Acids and bases can catalyze this reaction, or it can occur at neutral pH under elevated temperatures. Yields of up to 90% can be achieved with acidic or neutral pH with a large excess of water.
Monoethylene glycol (MEG) storage
MEG should be handled with care as it can be toxic if ingested or absorbed through the skin. It is recommended to be stored under an inert atmosphere such as nitrogen to sustain product stability. Appropriate personal protective equipment like gloves and goggles, is recommended during handling.
Monoethylene glycol (MEG) health hazards
Monoethylene glycol has high toxicity when ingested. MEG ingestion impacts the central nervous system, heart and can cause acute kidney failure.
Eye exposure to Monoethylene glycol vapours can irritate eyes. So, it is suggested goggles should be worn while handling the chemical. In the case of eye contact, immediately wash eyes with plenty of water and seek medical attention. Skin exposure with MEG can also irritate and so gloves should be worn.
Inhalation exposure to high levels of ethylene glycol can cause irritation, and leads to respiratory discomfort and coughs. In the case of inhalation, the individual should be removed from the environment and breathe fresh air.
Please contact us for a price quote, to request detailed product information and specifications, or to have a sales representative call or visit.
FAQ
How much does Monoethylene glycol cost per kg?
ArChem Monoethylene glycol (MEG) can be purchased in a variety of volumes. Depending on your orders, Prices are different. For more information about Monoethylene glycol (MEG) price, please contact our technical sales team in ArChem.
What is the chemical formula of Monoethylene glycol (MEG)?
MEG is a chemical compound with the chemical formula C2H6O2.
What is the CAS number of MEG?
The CAS number of MEG is 107-21-1.
What is the HS code for MEG?
29053100
What is Monoethylene glycol (MEG) used for?
MEG is used for the preparation of polymers such as polyesters and polyethylene terephthalates. Plus, it is used in antifreeze formulations in cars and as a cooling agent in air conditioning systems.
Is Monoethylene glycol (MEG) harmful?
MEG should be handled with care as it can be toxic if ingested or absorbed through the skin. It is recommended to be stored under an inert atmosphere such as nitrogen to sustain product stability. MEG ingestion impacts the central nervous system, heart and can cause acute kidney failure.
What is MEG?
Monoethylene glycol (also known as MEG) is a clear and colourless liquid with a sweet taste. It is miscible with water, alcohols, and many other organic compounds. MEG is the most important of the commercially ethylene glycols, as it has many industrial applications.