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Mono Ethylene Glycol (MEG)


Chemical specifications 

A clear liquid, colorless, with a sweet smell with a sweet taste and a concentration such as syrup. It is mixed with water and aromatic and aliphatic hydrocarbons. This is a solvent mix of many oils, lignin, gum, cellulose acetate, alcohol soluble paints, synthetic resins, nitrocellulose and the like. 

Ethylene glycol does not mix with ethylene glycol (Heavy Dil ether) or with polyethylene glycol (non-toxic polyether polymer) 

Polyethylene terephthalate used for plastic bottles Non-alcoholic drinks are made from ethylene glycol 

Physical and Chemical Properties of Mono Ethylene Glycols: 

Mode: Liquid 

: C2H6O2 Molecular Formula 

Solubility in water: Solubility solution in acetone and aliphatic alcohols 




Ethylene oxide reacts with water and, based on the reaction, produces ethylene dioxide: 


This reaction occurs in the presence of acidic or play catalysts or in neutral acidity at high temperatures. But the highest ethylene glycol yields in acid or neutralized PH in the presence of plenty of water. In this situation, up to 90% of the production output can be achieved. The main products of ethylene glycol are ethylene glycol oligomers, tri-ethylene glycol, and tetramethylene glycol.  


The range of application of this material is very wide and includes the textile industry to the packaging of kitchen goblins, engine coolers, and anti-dust. Carpets and pillows, polyester wool fibers originate all and all of the ethylene glycol. 

The demand for mono-ethylene glycol was 21 million tonnes in 2011, expected to reach more than 28 million tonnes by 2015. In China, the growth in demand for this product will increase by 7% annually. 45% of mono-ethylene glycol products are consumed in China. 

Mono-ethylene-glycine is available in four grades: polyester, anti-dust, high purity and industrial 

1- polyester 

The polyester grade is used in the production of polyester fibers and polyethylene resin rubbers that are used in the production of products such as textiles, cables, videotapes, and bottles of water and beverages. The solubility of this material for cellulose esters increases with the addition of ketones or halogenated hydrocarbons. 55% of the total production of this material is used in polyester and fiber industries and 25% in polyethylene  terephlets packaging. This substance is used as a stabilizing agent for cosmetics, as well as solvent odorless varnishes. Its hydrophilic properties make it ideal for fiber, paper, glue, leather, printing ink and cellophane fiber.  

2- Industrial 

Evaporation and centrifuge systems are the core of the purification processes. Dehydration and removal of unwanted solids by mono-ethylene glycol will ideally effect the purification process, which protects the pipelines against frost and corrosion. The presence of cold, the presence of salt water and the possibility of corrosion create difficult conditions for natural gas transmission lines below sea level. In order to ensure intra-pipe transport, the mono-ethylene glycol is added to the natural gas before it is transferred, along with other materials. However, in order to continue to corrode, MEG is required to be used continuously in gas purification.  

3- Antifreeze: This compound is used in anti-icing. 

4. Motor cooling: Ethylene glycol is also used as engine cooling. 

Dangers of Mono Ethylene Glycol in the Environment: 

Mono-ethylene glycol vapor mixture with air, explosive at higher temperatures than flashpoint. 

It is decomposed in air after about 10 days 

  It also decomposes in water and soil after several days or several weeks