The compound ethylene glycol is a clear, colorless, viscous liquid principally used as a component in automotive antifreeze or coolant products and also has manufacturing and industrial applications. CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Polymer Science and Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province, 230026 China . DESCRIPTION: Ethylene glycol is a useful industrial compound found in many consumer products, including automotive antifreeze, hydraulic brake fluids, some stamp pad inks, ballpoint pens, solvents, paints, plastics, films, and cosmetics; it also is used as a pharmaceutical vehicle. Side Effects. Further, ethylene is also used in agricultural practices to ripen fruits, germination of the seed, etc. The main difference between propylene glycol and ethylene is the level of toxicity and efficiency of performance. The major source of it to soil is derived from its use as antifreeze and deicing fluid at airports. A daring feat of construction . The water inlet temperature is 15 C and the ethylene glycol inlet temperature is 80 C . They are alcoholic compounds due to the presence of –OH groups. Gas chromatography (GC)-based laboratory assays are the gold standard for diagnosing EG intoxication. The site uses state-of-the-art ethylene glycol process technology. How to Stay Safe . It is odorless liquid and has a sweet taste. A rat study comparing some aspects of ethylene glycol and diethylene glycol toxicity showed that blood and kidney oxalate concentrations were higher when ethylene glycol was given [59]. This reaction can be catalyzed by either acids or bases, or can occur at neutral pH under elevated temperatures. However, GC requires specialized instrumentation and technical expertise that limits feasibility for many clinical laboratories. However, it is not just to keep the radiator from freezing but… … The addition of ethylene glycol to water causes the freezing point of the latter to decrease, thus the damage that would be caused by the water freezing in a radiator can be avoided by using a mixture of water and ethylene glycol as the coolant. Uses of ethane-1,2-diol (ethylene glycol) Figure 1 Uses of ethane-1,2-diol. The reaction is catalyzed by acidic or basic catalysts. Propylene glycol has the E-Number E1520. 4. Ethylene glycol is produced from ethylene, via the intermediate ethylene oxide Ethylene oxide reacts with water to produce ethylene glycol according to the chemical equation C 2 H 4 O + H 2 O → HOCH 2 CH 2 OH. Polyethylene glycol, referred to as PEG, is used as an inactive ingredient in the pharmaceutical industry as a solvent, plasticizer, surfactant, ointments, and suppository base, and tablet and capsule lubricant. The molar mass of ethylene glycol is 62.07 g/mol. Ethylene glycol may be swallowed accidentally, or it may be taken deliberately in a suicide attempt or as a substitute for drinking alcohol (ethanol). MEG is also used in antifreeze applications. Most monoethylene glycol (MEG) is used to make polyester fibres for textile applications, PET resins for bottles and polyester film. Ethylene is abundantly used in the chemical industry, and the polyethene is extremely produced using ethylene. Indeed 45% of the polyester is used for bottles 1. In pure form, ethylene glycol is a clear liquid. It is a colorless liquid which has a syrup-like consistency. Ethylene Glycol (C2H6O2) - Ethylene glycol is the first member of the series of alkane diols and is also known as glycol. The widespread use of ethylene glycol as an antifreeze is based on its ability to lower the freezing point when mixed with water. Water is used to cool ethylene glycol in a 10-m-long double pipe counterflow heat ex- changer made of 4-std and 2-std (both type M) copper tubing. Mono Ethylene Glycol is used as a reactant in the manufacture of Alkyd resins which are used in paints, enamels, and varnishes. Let us have a look at the ethene structure and formula. Through a streamlined process design, this results in lower capital and energy cost and higher raw material efficiency. The physical properties of ethylene glycol-water mixtures are therefore extremely important. It is also used in antifreeze applications and in pharmaceuticals and cosmetics. It is poisonous if swallowed. PEG has low toxicity with systemic absorption less than 0.5%. It is produced commercially from ethylene oxide, which is obtained from ethylene. Conservation of fuel and energy essay and ethylene glycol properties essay and applications. To understand the purpose of glycol, you must first understand how a chiller works. Its primary use is in industrial cooling applications as freeze protection and rust inhibiting. It is a colorless syrupy liquid, toxic and has a sweet taste. Side Effects. Glycol comes in two varieties: ethylene glycol and propylene glycol. Find Lowest Prices. Consult your pharmacist or physician. Mono Ethylene Glycol (MEG) is an essential component used as raw material in diverse industrial processes such as the manufacture resins, polyester, fibers and various types of films. MEG is primarily used as raw material in different forms for carrying out a number of industrial processes including: Coolant & Heat Transfer Agent– Majorly ethylene glycol acts as a medium for convective heat transfer like in automobiles & liquid cooled computers. If the flow direction of one of the fluids is reversed. The end uses for ethylene glycol are numerous. The flow rate of the ethylene glycol is 10 kg/s, while that for the water is 15 kg/s. Consult your pharmacist or physician. • The use of MEGlobal Ethylene Glycol Products (MEG, DEG) as a component of heat transfer fluids in systems where the heat transfer fluids could infiltrate (i.e., via an exchanger leak, backflow prevention failure, or other means) a potable water system is not supported by MEGlobal. Because this material is cheaply available it finds many niche applications. Ethylene glycol is a colorless liquid with the chemical formula C2H6O2. Ethylene glycol is a colorless, odorless, sweet-tasting chemical. Polyethylene glycol is produced by the interaction of ethylene oxide with water, ethylene glycol, or ethylene glycol oligomers. Conclusion. Ethylene glycol and its oligomers are preferable as a starting material instead of water, because they allow the creation of polymers with a low polydispersity (narrow molecular weight distribution). This article is for information only. Ethylene is a hydrocarbon. An interesting fact about MEG is that 21 million tons are manufactured around the globe and 45% of it is consumed in China. Safety is key when handling Ethylene Glycol. This organic compound is highly toxic. Ethylene glycol is a chemical compound that has an alcohol with two -OH groups. How to use Ethylene Glycol Liquid. Food Industry; Another testament to the non-toxic nature of PG is its use in the food industry where it serves as a humectant, solvent and preservative among other things. Its chemical formula is C 2 H 4 (OH) 2. It is primarily used as a raw material to produce polyester fibers for the fabric industry, and polyethylene terephthalate resins (PET) used in the bottle industry. MEG is conventionally produced through the hydrolysis of ethylene oxide (EO), which itself is obtained via ethylene oxidation. Ethylene Glycol can be used safely and effectively without injury. This chemical also named as Ethane-1,2-diol or Monoethylene glycol. TCC’s Ethylene Glycol’s major end uses are as an antifreeze, which accounts for more than 50% of ethylene glycol’s commercial use, and as raw material in the production of polyester fibers and plastics, mainly PET, which accounts for 40% of total ethylene glycol consumption. Ethylene glycol and propylene glycol are organic compounds. Basic Uses of Ethylene Glycol in Industrial Processes. Ethylene Glycol: Ethylene glycol is mainly used for the manufacturing of polyester fibers and as an automotive antifreeze. Acute (short-term) exposure of humans to ethylene glycol by ingesting large quantities causes three stages of health effects: central nervous system (CNS) depression, followed by cardiopulmonary effects, and later renal damage. Ethylene Structure. Ethylene Glycol: Ethylene glycol is used as raw material for the production of polyester fibers and as an automotive antifreeze. 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