20. These organic compounds have important applications depending on the chemical structure of the compound. Propylene glycol is a single molecule with 3 carbons and 2 OH groups: this means it is a double alcohol, but is not toxic to humans. The world MEG production capacity for the year 2016 was 34.8 million tons. Ethylene Glycol: The general formula for ethylene glycol is C2H6O2. Terms of Use and Privacy Policy: Legal. Polyethylene Glycol: Polyethylene glycol has many uses including medical uses, chemical uses, biological uses, industrial uses, etc. Ethylene Glycol และ Polyethylene Glycol มีความแตกต่างกันอย่างไร? Wade, Leroy G. “Ethylene glycol.” Encyclopædia Britannica, Encyclopædia Britannica, inc., 2 Dec. 2011, Available here.2. PEG is the base for many skin creams and personal lubricants. What is the Difference Between Ethylene Glycol and Polyethylene Glycol      – Comparison of Key Differences, Key Terms: Ethylene Glycol, Hydrogen Bonds, Polydispersity, Polyethylene Glycol, Polymerization. Figure 2: Molecular Formula of Polyethylene Glycol. 1. What is Ethylene Glycol? Ethylene glycol is the main ingredient in many antifreeze mixtures for automobile radiators. In addition, both of these compounds are commercially very important and used in a number of applications. It can be either cationic polymerization or anionic polymerization. Ang pangunahing pagkakaiba a pagitan ng ethylene glycol at polyethylene glycol ay mayroong iang nakapirming halaga ng molekular na timbang para a etilena glycol amantalang walang nakapirming halaga ng molekular na timbang para a polyethylene glycol.Bagaman ang parehong etylene glycol at ang polyethylene glycol ay may halo magkaparehong mga pangalan, magkakaiba ila ng mga compound … It has many industrial applications; it is used as an antifreeze coolant in hydraulic fluids and in the manufacturing of low-freezing dynamites and resins. Ethylene glycol is a syrupy liquid at room temperature whereas polyethylene glycol is a solid material. Ethylene glycol is moderately toxic if ingested. (organic compound) A thick, colourless liquid, C 2 H 4 (OH) 2, of a sweetish taste, produced artificially from certain ethylene compounds and used as an antifreeze; ethylene glycol. Glycol is better known as ethylene glycol 2. Both acidic and basic catalysts are used to catalyze this reaction. Otherwise known as PEG and PG, these ingredients are found in your car, in your food, in your pharmaceuticals, and (you guessed it) in your personal care products. B. Propylene glycol is metabolized to more toxic compounds. Polyethylene Glycol: The molecular weight of polyethylene glycol depends on the value of “n” in its general formula. This is gradually being replaced by propylene glycol due to its lower toxicity.. Propylene glycol is a viscous liquid without an odor or a color. Ethylene glycol has two carbon atoms, and propylene glycol has three carbon atoms per molecule. Madhusha is a BSc (Hons) graduate in the field of Biological Sciences and is currently pursuing for her Masters in Industrial and Environmental Chemistry. At room temperature and pressure, ethylene glycol is a syrupy liquid. It is a viscous liquid. When comparing ethylene and propylene glycol, one characteristic to note are the freeze point properties. Polyethylene glycol is a polyether compound. An automotive antifreeze is a liquid used in the radiator and cooling system of an internal combustion engine for vehicles. Compare MiraLAX vs Polyethylene Glycol 3350 head-to-head with other drugs for uses, ratings, cost, side effects and interactions. Both ethylene glycol and polyethylene glycol are so called “trivial” names that might be misleading in terms of chemical description. Polyethylene glycol (PEG; / ˌ p ɒ l i ˈ ɛ θ əl ˌ iː n ˈ ɡ l aɪ ˌ k ɒ l,-ˌ k ɔː l /) is a polyether compound derived from petroleum with many applications, from industrial manufacturing to medicine.PEG is also known as polyethylene oxide (PEO) or polyoxyethylene (POE), depending on its molecular weight.The structure of PEG is commonly expressed as H−(O−CH 2 −CH 2) n −OH. Polyethylene glycol/Polyethylene oxide ReadyCal Set Mp ~250 -1′000 000. Over a molecular weight of 900, it can be a white waxy solid, flakes or a powder. 1. It is important that the … Ethylene glycol or propylene glycol, for freeze protection; Water is nature’s heat transfer fluid, a liquid used for centuries to provide heating and cooling. Ethylene glycol is composed of two –OH groups in its structure. Its’ structure is commonly written as H−(O−CH2−CH2)n−OH. Asia holds a prominent share in the global market production of MEG The most common applications of ethylene glycol include its use as a raw material for the production of polyester fibers and as an automotive antifreeze. Polyethylene glycol is a polyether compound. It freezes at 32°F and boils at 212°F. Ethylene glycol can facilitate convective heat transfer in automobiles and liquid cooled computers. In contrast to ethylene glycol, propylene glycol rarely causes toxic effects. Both of them possess low vapor pressure, also they contain high boiling points and the ability to lower the freeze point of water. When comparing ethylene and propylene glycol, one characteristic to note are the freeze point properties. HOCH2CH2OH + n(CH2CH2O) → HO(CH2CH2O)n+1H. Polyethylene glycol appears in a … Therefore the final product gives a variety of polymer compounds with different molecular weights. Polyethylene Glycol: The general formula for polyethylene glycol is H−(O−CH2−CH2)n−OH. I want to use ethylene glycol or propylene glycol as an anti-freeze. * ethylene glycol * ethylene oxide * ethylene-vinyl acetate * polyethylene * polyethylene terephthalate (ester) ethanol . Polyethylene glycol is a polyether composed of repeated ethylene glycol units [-(CH 2 CH 2 O) n]. The IUPAC name of ethylene glycol is ethane-1,2-diol, and its molecular formula is (CH2OH)2. 1 Product Result It is an odorless, colorless, sweet-tasting viscous dihydroxy alcohol. Noun ()(organic chemistry) Any aliphatic diol. The main difference between ethylene glycol and propylene glycol is that ethylene glycol is toxic whereas propylene glycol is moderately toxic. The main difference between ethylene glycol and polyethylene glycol is that ethylene glycol has a fixed value for molecular weight whereas polyethylene glycol has no fixed value for molecular weight. Polyethylene Oxide should not be called Polyethylene Glycol. Ethylene glycol is an alcoholic compound. Both these compounds are miscible with water due to the presence of –OH groups. “ETHYLENE GLYCOL.” National Center for Biotechnology Information. English (wikipedia ethanol) Noun (en-noun) (organic compound) A simple aliphatic alcohol formally derived from ethane by replacing one hydrogen atom … Below a molecular weight of 700, it is an opaque liquid. PEG 1450 melts at 1100 F to 1150 F and absorbs into wood more slowly due to the higher molecular weight. Ethylene glycol is a syrupy liquid at room temperature whereas polyethylene glycol is a solid material. Ethylene Glycol has been known to be lethal in doses as low as 786 mg/kg. At molecular weights between 700 and 900, polyethylene glycol is a semisolid. In addition, both of these compounds are commercially very important and used in a number of applications. Polyethylene glycol is simply multiple molecules of ethylene glycol linked together into a long strand. It produces ethylene glycol when processed. Its molar mass is 62.07 g mol1. The molar mass of this compound is about 62.07 g/mol. Ethylene glycol and polyethylene glycol are two important members of the glycol family. It’s also a component of ballpoint pens and hydraulic brake fluids. The production of polyethylene glycol can be done form the reaction between ethylene oxide and water, ethylene glycol or ethylene glycol oligomers. @media (max-width: 1171px) { .sidead300 { margin-left: -20px; } } MiraLAX rated 7.5/10 vs Polyethylene Glycol … It has a faint sweet taste. PEG comes in either flake form or solid blocks and two molecular weights: 1450 and 1000. The molecular weight of the compound varies depending on the value of “n” in this general formula. Hence, ethylene glycol is miscible with water. PubChem Compound Database, U.S. National Library of Medicine, Available here. Ethylene glycol is a simple linear molecule, whereas polyethylene glycol is a polymeric material. Mono-Ethylene Glycol Production Capacity by Region. A high yield (90%) can be obtained when the reaction occurs at acidic or neutral pH, in the presence of excess amount of water. Although they have nearly similar names, polyethylene glycol and ethylene glycol are very different compounds depending on their chemical structures and general properties. Given that, applications for ethylene and propylene glycol solutions span a temperature range from -60 to 225°F (-51 to 107°C), depending upon glycol concentration and system type. Kaynaklar: "ETİLLENE GLYCOL" - Açık Kimya Veri Tabanı "Etilen glikol" - Wikipedia "POLİETİLEN GLYCOL" - Teknologi Üniversitesi MARA Görüntü Nezaketinde: "Etilen glikol kimyasal yapısı" (CC BY-SA 3. Etilen glikol ve polietilen glikol araındaki temel fark, kimyaal yapılarıdır.Etilen glikol bait bir doğrual molekü Both products are two chemical compounds used as some low temperature heat transfer fluids. It is also used in chilled water air conditioning systems. Therefore, it is more preferable. Ethylene Glycol: Ethylene glycol is produced from the reaction between ethylene oxide and water. Polyethylene Glycol: Polyethylene glycol is a polyether compound, meaning that it has many ether groups. The key difference between ethylene glycol and polyethylene glycol is their chemical structure. Ethylene glycol is referred to as a simple linear molecule, while, polyethylene glycol is referred to as a polymeric material. Ethylene glycol has a melting point of 197.3 °C. In addition, the reaction occurs at neutral pH under elevated temperatures too. Perbedaan Utama - Ethylene Glycol vs Polyethylene Glycol Etilen glikol dan polietilen glikol adalah dua anggota penting dari keluarga glikol. Some of you who work on cars may have heard of the compound before. Polythene Glycol: Polythene glycol possesses a low toxicity and therefore it is used as a lubricating coating for both aqueous and non-aqueous environments. The polymerization mechanism can be cationic or anionic polymerization depending on the type of catalyst. Ethylene Glycol: Ethylene is the main chemical compound that is used to produce ethylene glycol. Even the electronic cigarettes that DO utilize polyethylene glycol (PEG) come nowhere near this mark. Polythene Glycol: The reaction between ethylene oxide with water, ethylene glycol or ethylene glycol oligomers produces polyethylene glycol. There are many nasty ingredients out there, but in this post I want to touch on two that I find particularly bad: Propylene Glycol and Polyethylene Glycol. This is mainly because A. Absorption of propylene glycol from the gastrointestinal tract is slow. Polyethylene Glycol: Polyethylene glycol is produced from the reaction between ethylene oxide and water, ethylene glycol or ethylene glycol oligomers. It is the most commonly available glycol and is commercially produced in large quantities. But if ethylene glycol or oligomers are used instead of water, it gives the final product with a low polydispersity. The main difference between ethylene glycol and polyethylene glycol is that ethylene glycol has a fixed value for molecular weight whereas polyethylene glycol has no fixed value for molecular weight. When water is used for the reaction with ethylene oxide, the final product has a high polydispersity (the product has a high molecular weight distribution). Her interest areas for writing and research include Biochemistry and Environmental Chemistry. Ethylene Glycol: The molecular weight of ethylene glycol is about 62.07 g/mol. “Polyethylene glycol” By Klaus Hoffmeier – Own work, Public Domain) via Commons Wikimedia. It is also used as a polar stationary phase in gas chromatography and as a heat transfer fluid in electronic testers. Filed Under: Chemistry Tagged With: Compare Ethylene Glycol and Polyethylene Glycol, Ethylene Glycol, Ethylene Glycol and Polyethylene Glycol Differences, Ethylene Glycol Features, Ethylene Glycol Properties, Ethylene Glycol vs Polyethylene Glycol, PEG, PEO, POE, Polyethylene Glycol, Polyethylene Glycol Features, Polyethylene Glycol Properties, polyethylene oxide, polyethylene oxide (PEO), polyoxyethylene, polyoxyethylene (POE). 1. Given that, applications for ethylene and propylene glycol solutions span a temperature range from -60 to 225°F (-51 to 107°C), depending upon glycol concentration and system type. Depending on its molecular weight, polyethylene glycol may have different appearances. What is Ethylene Glycol      – Definition, Properties, Uses 2. Etilen glikol ve polietilen glikol, glikol aileinin iki önemli üyeidir. This reaction needs an acidic or basic catalyst. Polyethylene glycol (PEG) is a polymeric compound, and it is used in a wide range of areas such as chemical, biological, medical, industrial and commercial applications. Ethylene glycol is poisonous to humans and other animals. Ethylene glycol is a sweet tasting syrupy liquid. It is also completely miscible with water. This results in a high boiling point—198°C; thus ethylene glycol does not boil away when it is used as an antifreeze. For ethylene glycol, the mixing ratios are typically 30/70 and 35/65, whereas the propylene glycol mixing ratios are typically 35/65 and 40/60. However, anionic polymerization gives a low polydispersity. What are the freezing points of various aqueous solutions of these chemicals? Ethylene glycol is toxic to humans and animals. You see if you ever purchase anti-freeze, or brake fluid for your car, simply turn the container around and read the ingredients. The reaction between ethylene glycol and its oligomers is preferable than with water. Both acids and bases can be used as catalysts for this reaction. To extend this range, other chemicals like ethylene glycol and propylene glycol are added. Ethylene glycol is a simple linear molecule, whereas polyethylene glycol is a polymeric material. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2010-2018 Difference Between. Glycol. The two OH groups lead to extensive intermolecular hydrogen bonding. For example, it is used as an excipient in many pharmaceutical products. Compare the Difference Between Similar Terms. The length of the polymer chain depends on the ratio of reactants. In addition, suspension polymerization can also be used. Its molar mass is 76.09 g/mol. Ethylene glycol has a fixed value of molecular weight which is about 62.07 g/mol, on the flip side, polyethylene glycol has no fixed value of molecular weight which in turn depends on value of “n” in its general formula. What is Polyethylene Glycol      – Definition, Production, Uses 3. Ethylene Glycol: Ethylene glycol is a colorless and odorless alcoholic compound having the chemical formula C2H6O2. However, it is a moderately toxic compound. Figure 1: Chemical Structure of Ethylene Glycol. The general formula of this compound is given as H−(O−CH2−CH2)n−OH. It is miscible with water. Home » Science » Chemistry » Organic Chemistry » Difference Between Ethylene Glycol and Polyethylene Glycol. It is an organic compound which can be used as a raw material to  manufacture polyester fibers and antifreeze formulations. All rights reserved. Ethylene glycol solutions became available in 1926 and were marketed as “permanent antifreeze” since the higher boiling points provided advantages for summertime use as well as during cold weather. Ethylene glycol is a liquid that is odorless, colorless, sweet tasting and is syrupy like. Polyethylene glycol is, in fact, used in antifreeze because it lowers the freezing temperature of water. Boiling point of propylene glycol is 188.2 °C. PEG is a clear liquid or a water-soluble white solid with a mild odor. It is used in a number of toothpaste as a dispersant and as an anti-foaming agent in food industrial applications. Ethylene Glycol: Ethylene glycol is mainly used in antifreeze formulations and as a raw material in the manufacturing of polyesters such as polyethylene terephthalate (PET) in plastic industry. Propylene Glocol Vs Ethylene Glycol. Answer: The freezing points of these glycol solutions can be found in the tables below: Ethylene Glycol Solution (% by mass) 0: 10: 20: 30: 40: 50: 60: More a particular glycol than the other one toxic whereas propylene glycol has uses... As some low temperature heat transfer fluids ve polietilen glikol, glikol aileinin iki önemli üyeidir compound is as... Are the freeze point of this compound is given as H− ( O−CH2−CH2 ) n−OH done form reaction. Your car, simply turn the container around and read the ingredients these compounds are commercially very important used... 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