Product Details

Monoethylene glycol(MEG)

Monoethylene glycol is an organic compound with the chemical formula C₂H₆O₂. The main use of this substance is in the manufacture of polyester fibers and antifreeze formulations. Monoethylene glycol or MEG is odorless and colorless. Monoethylene glycol tastes sweet and has a sticky state. Monoethylene prevents car engines from freezing, especially in cold seasons. In addition to antifreeze formulations, this substance is also used in industrial compressor gas coolers. Ethylene glycol has many applications in various industries, which is why the demand for purchasing monoethylene glycol in various industries has increased greatly, and in this article, we have tried to examine the characteristics and applications of monoethylene glycol so that if you intend to prepare this material, this article can be a guide for you in this path.

What is monoethylene glycol (MEG)?

Mono Ethylene Glycol (MEG) is one of the most important basic materials in the petrochemical chain, which is widely used in downstream industries as a chemical solvent, coolant, and raw material for the production of polyesters and anti-perspirants. This organic compound is obtained from the reaction of ethylene oxide with water and has a special place among ethylene glycol derivatives due to its unique physical properties.
In appearance, monoethylene glycol is a colorless, odorless liquid with a viscosity higher than water that has a high boiling point and dissolves well in water. These same properties have led to its use in the formulation of chemical products that require temperature control, heat transfer, or increased stability.
In manufacturing industries, MEG is often used as the main base for the production of polyester fibers (PET), resins, engine antifreeze, and coolant compounds. Due to the significant production of this substance in Iranian petrochemical complexes, monoethylene glycol is considered one of the country’s strategic export items and plays an important role in meeting the needs of domestic industries and regional markets.

 

Product brands: Shazand – Pearl – Maroon

Usages

As an antifreeze
When MEG is dissolved in water, the hydrogen bond is broken. Monoethylene glycol freezes at -12°C. It is added as an additive to automotive cooling systems and heating systems to prevent freezing. In other words, adding monoethylene glycol to water lowers the freezing point of the solution and prevents the water from freezing even at lower temperatures. This application is very important because in cold regions, water may freeze naturally, which may cause damage to the cooling systems and other components of the vehicle or heating system. Using monoethylene glycol as an antifreeze solves this problem.

Applications of monoethylene glycol in antifreeze

Coolant and heat transfer
Monoethylene glycol is used as a cooling and heat transfer agent in air conditioning systems as well as geothermal systems to transfer heat from the ground. It is also used for heat transfer in cars and computers.

Plastics Industry
Monoethylene glycol is used as an advanced material in the production of polyesters and polytetrafluoroethylene (PET), which are used in the production of bottles and other plastic products.

Polyester Fibers
Monoethylene glycol is used in the production of polyester fibers used in the production of fabrics, carpets, and synthetic fibers.

Heat Transfer Fluids
Monoethylene glycol (MEG) is used in heat transfer fluids as a liquid thermal solvent. Monoethylene glycol is used as a coolant in cooling systems. These systems are commonly used in industries that require temperature control to protect equipment, including the electronics, automotive, and chemical industries.

Food Industry
In some food products, monoethylene glycol is used as an additive to prevent the product from freezing. Monoethylene glycol is used as a humectant to prevent beverages from drying out and increase their shelf life. It is used as a stabilizer and anti-crystallization agent in chocolate production to help improve the quality and taste of the products.

Water-based adhesives
Monoethylene glycol (MEG) has numerous applications in the adhesives industry, especially in the production of water-based adhesives. As a polyalcohol glycol with melting and tempering properties, this chemical compound provides positive properties for adhesives. MEG acts as a coagulant and hardener, which can help improve the adhesion and strength of the adhesive on various surfaces. Monoethylene glycol also acts as an antioxidant and can help the adhesive remain stable over time.

Pharmaceutical industry
Monoethylene glycol plays an important role in the production of some drugs. MEG is used as a solvent. This property can be used in various processes such as the production and processing of drugs.

Latex Paints
Monoethylene Glycol (MEG) is used in the production of latex paints as a plasticizer and conditioning agent. MEG is a polyalcohol glycol with melting and conditioning properties that is added to latex materials to achieve desired properties in the final product. Monoethylene Glycol is used as a plasticizer to maintain the flexibility and softness of latex paints and also as a humectant to prevent premature drying and loss of product quality.

Cosmetics
In the production of some cosmetic products, monoethylene glycol is used as a water-retaining and moisture-retaining agent. Monoethylene Glycol is used as a humectant in the formulations of some cosmetic products such as skin creams and lotions. MEG is also used as an anti-drying agent in the formulations of some skin care products such as soaps and shampoos. This substance can prevent excessive evaporation of water from the skin and protect the skin. Monoethylene glycol is also used as an additive in the composition of some cosmetic products such as powder coatings and lipsticks.

Asphalt emulsions

Monoethylene glycol (MEG) is used in the oil and gas industry as an antifreeze and solvent for asphalt emulsions (a hydrocarbon mixture that can be a mixture of asphaltenes and other substances). The main role of MEG in this field is as an antifreeze in asphalt mixtures. In asphalt systems, emulsions are used to maintain the stability of asphalt under various environmental conditions. As an antifreeze, MEG prevents the formation of ice in asphalt mixtures and maintains their performance in cold conditions. The use of MEG in asphalt emulsions, due to its antifreeze and solvency properties, helps to improve their performance and stability in harsh environmental conditions.

Chemical Industry
In the chemical industry, monoethylene glycol is also used to produce some chemical products such as resins and polyester products. MEG is used as an important raw material in the production of polyester fibers. These fibers are used in the production of textiles and fabrics.

Electrolytic Capacitors
Monoethylene glycol (MEG) is also used in some electrolytic capacitors. Electrolytes are substances that, when dissolved, have the ability to conduct electric current. Electrolytic capacitors use an electrode.

Storage conditions

It is best to store monoethylene glycol in cool, well-ventilated areas. The storage area for MEG should be cool and away from moisture and heat. Monoethylene glycol is mainly packaged in polyethylene tanks, barrels or large bags (which usually come with rental tank covers or pallets). If you are planning to buy monoethylene glycol, you should pay attention to the fact that the product packaging should be tight and protective against contamination, moisture, and temperature changes. Monoethylene glycol is sensitive to ultraviolet light. Therefore, the packaging should prevent light from penetrating the contents. Sealed tanks or special containers with appropriate shading are used. Humidity can also affect the properties of MEG. Therefore, direct contact with the weather should preferably be avoided and the packaging should be moisture-resistant. Monoethylene glycol should be stored in dry and cool environments. If the packaging materials get wet, they can cause monoethylene glycol contamination. MEG packaging must also have an expiration date and should not be used if the expiration date has passed.

Monoethylene glycol is a chemical substance produced by the reaction of water and ethylene oxide and is miscible with water, alcohols, and many organic compounds. It has the chemical formula C2H6O2.

Monoethylene glycol (ethylene glycol) is an organic chemical compound in liquid form. Although this compound is very simple among the types of glycol, it has many importance and applications in various industries. This substance is used in the petrochemical industry as an extraction solvent, the production of some plastics, and surfactants.

Monoethylene glycol is non-corrosive and stable and has a high flash point. If this substance is stored at high temperatures, it will deteriorate and the temperature of the storage environment must be controlled.

Appearance

Liquid, colorless, transparent and viscous

With a sweet smell

Made by:

Country Iran – China

Product:

Shazand – Pearl – Maroon

purity percentage:

≥99.8%

Density:

1/1132 g/cm3

Properties of Mono Ethylene Glycol MEG
  • Stability:

Monoethylene Glycol is stable. Monoethylene Glycol vapors are heavier than air and spread to surrounding areas. It has a specific gravity of 1.115 and a flash point of 110 degrees Celsius.

  • Thermophysical

Monoethylene Glycol has a thermophysical property that is suitable for heat transfer.

  • Non-corrosiveness

Monoethylene Glycol protects systems against corrosion.

  • Toxicity:

Monoethylene Glycol is a toxic chemical and its main danger comes from its sweet smell, which is dangerous for animals and children. Ethylene glycol is fatal in small amounts and if left untreated, it affects the central nervous system, heart, and can cause acute kidney failure.

Even the vapor from monoethylene glycol is harmful to the eyes, so it is recommended to wear goggles when working with chemicals.

 

What is Mono Ethylene Glycol?

Mono Ethylene Glycol or ethylene glycol is a chemical compound abbreviated as MEG (Mono Ethylene Glycol) and its chemical formula is C₂H₆O₂. This compound is part of the ethylene glycol family and is chemically an alcohol with two hydroxyl groups (-OH) attached to an ethylene molecule.
Common uses of this compound include the chemical industry, the production of polyester fibers, the production of antifreeze, coolants, and also in the medical and food industries as a safe solvent and additive.

Mono Ethylene Glycol is also used as an antifreeze in automotive cooling systems. Ethylene glycol is also known as 1,2-ethanediol, ethylene alcohol, 1,2-dihydroxyethane, and hydrocarbonous acid. In addition to its antifreeze properties, monoethylene glycol also has a dehydrating property. Ethylene glycol is soluble in water and is equally soluble in acetone, glycol ether, and aliphatic alcohols.

How is monoethylene glycol produced?

Monoethylene glycol (MEG) is obtained as a chemical from the production process of ethylene glycol (EG). The MEG production process is as follows:
First, ethylene gas is oxidized to ethylene oxide (EO). Then, ethylene oxide is hydrated with water under specific conditions and converted to ethylene glycol. The process is called the ethylene oxide (EO) catalyzed process. This process is carried out using catalysts such as silver or aluminum oxide catalysts. The production of MEG is of great importance because this compound is used as a raw material for the production of polyester fibers and other chemical products used in various industries.

History of Monoethylene Glycol Production

The first use of monoethylene glycol dates back to 1859. When it was first prepared by a French chemist named Charles Adolphe Wurtz through the saponification of ethylene glycol. Also in 1925, the first large-scale ethylene glycol production plant was established. In the 1930s, the production of ethylene glycol was recognized as a complex and difficult process. However, with the advancements in the chemical industry and new processes, the production of this substance became more mass and economical. After World War II, with the advancement of technology and increasing industrial needs, the production of MEG expanded to a greater extent and has now become one of the most important raw materials in the chemical industry.

Technical specifications of monoethylene glycol

Monoethylene glycol (MEG) is a chemical compound with the formula C₂H₆O₂. This compound is used in various industries, including polyester, antifreeze, food, cosmetics, and health care, due to its antifreeze, solubility, and heat-reducing properties. Monoethylene glycol, which is a type of glycol, has the following characteristics:

  • Molecular weight: about 62.07 grams per mole (g/mol)
  • Chemical formula: C₂H₆O₂
  • Appearance: A colorless, odorless, and viscous liquid
  • Flash point in the presence of flame: 11 °C
  • Melting point: about -13 °C
  • Acidity: None
  • Boiling point: about 198-199 °C
  • Autoignition temperature: 398 °C
  • Density: about 1.1135 g/cm3

Properties of monoethylene glycol

Monoethylene Glycol (MEG) is a chemical compound with diverse properties that is used in many industries. One of the main properties of MEG is that it acts as an antifreeze. This property makes monoethylene glycol suitable for use in automotive cooling systems and heating systems. Monoethylene glycol dissolves well in water, which makes it suitable for use in chemical processes, cosmetics and health care industries, etc.

Some products containing MEG are used in the health and beauty industries due to its antibacterial properties. As the concentration of monoethylene glycol in water increases, the boiling point of water decreases. This property is important for some industrial processes. Monoethylene glycol is available and has a relatively low price. MEG has good properties in reducing ambient heat and can be used as a coolant in heating systems. Against moisture, monoethylene glycol is used as an effective antifreeze agent. These properties have led to the widespread use of MEG in various industries.

Applications of monoethylene glycol

Monoethylene glycol has many applications, the most important of which are:

As an antifreeze

When MEG dissolves in water, the hydrogen bond is broken. Monoethylene glycol freezes at a temperature of minus 12 degrees Celsius. This substance is added as an additive to car cooling systems and heating systems to prevent freezing. In other words, adding monoethylene glycol to water lowers the freezing point of the solution and the water does not freeze even at lower temperatures. This application is very important because in cold regions, water may freeze naturally and this may cause damage to cooling systems and other vehicle parts or heating systems. Using monoethylene glycol as antifreeze solves this problem.

 

 

Coolant and heat transfer

Monoethylene glycol is used as a coolant and heat transfer agent in air conditioning systems as well as geothermal systems to transfer heat from the earth. It is also used for heat transfer in cars and computers.

Plastics industry

Monoethylene glycol is used as an advanced material in the production of polyesters and polyterephthalate (PET), which plays a role in the production of bottles and other plastic products.

Polyester Fibers

Monoethylene Glycol is used in the production of polyester fibers used in the production of fabrics, carpets, and synthetic fibers.

Heat Transfer Fluids

Monoethylene Glycol (MEG) is used in heat transfer fluids as a liquid thermal solvent. Monoethylene Glycol is used as a coolant in cooling systems. These systems are commonly used in industries that require temperature control to protect equipment, including the electronics, automotive, and chemical industries.

Food Industry

In some food products, monoethylene glycol is used as an additive to prevent the product from freezing. Monoethylene glycol is used as a humectant to prevent beverages from drying out and increase their shelf life. It is used as a stabilizer and anti-crystallization agent in the production of chocolates to help improve the quality and taste of the products.

Water-based adhesives

Monoethylene glycol (MEG) has numerous applications in the adhesives industry, especially in the production of water-based adhesives. As a polyalcohol glycol with melting and conditioning properties, this chemical compound provides positive properties for adhesives. MEG acts as a coagulant and hardener, which can help improve the adhesion and strength of the adhesive on various surfaces. Monoethylene glycol also acts as an antioxidant and can help the adhesive stay stable over time.

Pharmaceutical Industry

Monoethylene glycol plays an important role in the production of some drugs. MEG is used as a solvent. This property can be used in various processes such as the production and processing of drugs.

Latex Paints

Monoethylene glycol (MEG) is used in the production of latex paints as a plasticizer and conditioner. MEG is a polyalcohol glycol with melting and conditioning properties, added to latex materials to achieve desired properties in the final product. Monoethylene glycol is used as a plasticizer to maintain the flexibility and softness of latex paints and also as a humectant to prevent premature drying and loss of product quality.

Cosmetics

In the production of some cosmetic and health products, monoethylene glycol is used as a water and moisture retention agent. Monoethylene glycol is used as a humectant in the compositions of some cosmetic and health products such as skin creams and lotions. MEG is also used as an anti-drying agent in the compositions of some skin care products such as soaps and shampoos. This substance can prevent excessive evaporation of water from the skin and protect the skin. Monoethylene glycol is also used as an additive in the composition of some cosmetic products such as powder layers and lipsticks.

Asphalt emulsions

Monoethylene glycol (MEG) is used in the oil and gas industry as an antifreeze and solubilizer for asphalt emulsions (a hydrocarbon mixture that can consist of a mixture of asphaltenes and other substances). The main role of MEG in this field is as an antifreeze in asphalt mixtures. In asphalt systems, emulsions are used to maintain the stability of asphalt under various environmental conditions. MEG as an antifreeze prevents ice formation in asphalt mixtures and maintains their performance in cold conditions. The use of MEG in asphalt emulsions, due to its antifreeze and solubilizing properties, helps to improve their performance and stability in harsh environmental conditions.

Chemical industries

In the chemical industry, monoethylene glycol is also used to produce some chemical products such as resins and polyester products. MEG is used as an important raw material in the production of polyester fibers. These fibers are used in the production of textiles and fabrics.

Electrolytic capacitors

Monoethylene glycol (MEG) is also used in some electrolytic capacitors. Electrolytes are substances that, in a dissolved state, have the ability to conduct electric current. Electrolytic capacitors use an electrolyte as the active material between two electrodes to store or discharge electrical charge. In some electrolytic capacitors, MEG may be used as a component of the electrolyte. Properties of monoethylene glycol, including good electrical resistance and stability