ethylene glycol vs propylene glycol

The hydroxyl groups are attached to the first and the second carbon atoms. It is used as a solvent in the pharmaceutical industry. People will commonly mistake Propylene glycol for Ethylene glycol, but the contrast is that Ethylene glycol is toxic. 3. Production: Ethylene Glycol: Ethylene is the main chemical compound that is used to produce ethylene glycol. However, when considered the uses, both are used for somewhat same purposes. The most common older type antifreeze is Ethylene-Glycol (which is toxic) and water (EGW). Ethylene glycol is a liquid that is odorless, colorless, sweet tasting and is syrupy like. Which is it? Therefore, it is an alcoholic compound. @media (max-width: 1171px) { .sidead300 { margin-left: -20px; } } 1991). An automotive antifreeze is a liquid which is used in radiators and cooling systems of internal combustion engines in vehicles. Ethylene glycol is a toxic compound. “PropyleneGlycol-stickAndBall” By Karlhahn – Own work (Public Domain) via Commons Wikimedia. Propylene Glycol is a synthetic organic compound that has the chemical formula C3H8O2. Ethylene glycol solutions are normally preferred over Propylene Glycol because of their more desirable physical properties particularly at lower temperature. Boiling point of propylene glycol is 188.2 °C. There is also Propylene-Glycol (which itself is non-toxic and is used as a food additive) and water (PGW). Ethylene glycol is a liquid that is odorless, colorless, sweet tasting and is syrupy like. Figure 2:  3D Ball and Stick Model for Propylene Glycol. Propylene glycol is an additive product and serves many different purposes in a multitude of industries. Polythene Glycol: The molecular formula of PEG is (C 2 H 4 O) n+1 H 2 O and its structural formula is expressed as below. Massa molar 62,07 g mol −1. Boiling point of propylene glycol is 188.2 °C. Both EG and PG are produced from the refining of crude oil and natural gas. • Ethylene glycol has the chemical formula C2H6O2. They are processed at an ethylene cracker into propylene and ethylene feedstocks. Less EG is required to produce the same freezing point as PG. It is miscible with water. Ethylene Glycol Ethers versus Propylene Glycol Ethers The members of this category are glycol ethers derived from ethylene glycol, diethylene glycol, and triethylene glycol. The tests showed that the performance of 50/50 PG/water is degraded at higher flow rates to a greater degree than either 50/50 EG/water or 100% water. The IUPAC name for this compound is Propane-1,2-diol. What is the difference between Ethylene Glycol and Propylene Glycol? 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. Her interest areas for writing and research include Biochemistry and Environmental Chemistry. Their molecular formulas are different; thus they have some different physical properties. Propylene glycol, another common coolant, has … “1,2-Propanediol.” National Center for Biotechnology Information. Terms of Use and Privacy Policy: Legal. Ingestion of large quantities of ethylene glycol can cause vomiting, coma, respiratory failure, convulsions, metabolic changes, cardiopulmonary effects etc. So why not just use propylene glycol? The term “glycol” is used when there are two hydroxyl groups present in neighboring carbon atoms. Since there is a chiral carbon (asymmetric carbon) in propylene glycol molecule, the synthesized product is always a racemic mixture of two enantiomers. Ethylene Glycol: IUPAC name for Ethylene glycol is Ethane-1,2-diol. The main difference between ethylene glycol and propylene glycol is that ethylene glycol is toxic whereas propylene glycol is moderately toxic. This means it absorbs water when exposed to the atmosphere. 1. Ethylene glycol adalah cairan yang tidak berbau, tidak berwarna, berasa manis dan seperti sirup. Ethylene glycol is produced from ethene. Ethylene glycol and propylene glycol differ when considering physical, environmental, and heat transfer characteristics. Both ethylene glycol and propylene glycol are alcoholic compounds which have two –OH groups per molecule. It has a chiral carbon (3rd carbon atom), therefore, propylene glycol exists in two stereoisomers. It has a faint sweet taste. Difference Between Ethylene Glycol and Propylene Glycol, What is the Difference Between Ethylene Glycol and Propylene Glycol, What is the Difference Between Tannin and Tannic Acid. Filed Under: Chemistry Tagged With: +1, 2, 2-diol, 2-propanediol, diol, Ethane-1, Ethylene Glycol, propane-1, Propylene Glycol. It is important that the … Etilen glikol diproduksi dari etena. All rights reserved. Propylene glycol in medicines caused me anaphylactic reactions. Propylene glycol is also used for it's heat transfer and freeze protection properties. The more modern antifreeze is Organic Acid Technology (OAT) which is commonly touted as being non-toxic and environmentally friendly. So when producing in the industry, a racemic mixture is resulting. Propylene glycol is a viscous liquid without an odor or a color. It has a faint sweet taste. 2,3-butanediol, often found in the plasma of alcoholics, can be mistakenly identified as ethylene glycol when the analysis is performed by gas chromatography (Jones, Nilsson et al. The main difference between ethylene glycol and propylene glycol is that ethylene glycol is toxic whereas propylene glycol is moderately toxic. However, it is very useful as a chemical and can be found in many household items such as detergents, cosmetics, etc. • So when safer properties are required in industries, ethylene glycol is replaced with propylene glycol. Propylene glycol is a viscous liquid without an odor or a color. 2. Ethylene glycol has a melting point of 197.3 °C. It is in the ink used by printers, and in stamp pad ink, Ballpoint pens etc. Propylene Glycol: Propylene Glycol is used as a solvent for intravenous, oral, and topical pharmaceutical preparations. Ethylene glycol is an organic compound with two carbon atoms and two hydroxyl groups. The molar mass of propylene glycol is about 76.1 g/mol. These organic compounds have important applications depending on the chemical structure of the compound. Each hydroxyl group is separately attached to one carbon atom. Difference Between Hydrogenation and Hydrogenolysis, What is the Difference Between Betting and Gambling, What is the Difference Between Mojito and Caprioska, What is the Difference Between Aromatherapy and Swedish Massage, What is the Difference Between Lyocell and Viscose, What is the Difference Between Pine Tree and Christmas Tree, What is the Difference Between Aioli and Mayonnaise. The IUPAC name of ethylene glycol is Ethane-1,2-diol. Ethylene glycol is a syrupy alcoholic liquid compound having the chemical formula C2H6O2. The boiling point of this liquid is about 198 °C. In contrast to ethylene glycol, a potent cause of acute toxicity in humans, propylene glycol is a “generally recognized as safe” (GRAS) additive for foods and medications. Normal Operation – During normal operation you do NOT want to operate with propylene glycol as this coolant does not have the same density and therefore heat transfer capacity as ethylene glycol. (adsbygoogle = window.adsbygoogle || []).push({}); Copyright © 2010-2018 Difference Between. I was in an oil spill in 2004 and the fumes gave me a lung burn and sensitized me to petroleum in any form. 1. When a reaction takes place between ethylene oxide with water, the ethylene glycol oligomers or the ethylene glycol, it gives rise to polyethylene glycol. Operationally, EG-based fluids perform better. The intermediate is ethylene oxide and, when it is reacted with water, ethylene glycol is produced. At room temperature, it is a clear liquid. Ethylene glycol is commonly used in applications where efficiency is important and there is no human or animal contact due to the toxicity of the ethylene glycol chemistry. There is a difference in the mixing ratio, depending on whether it is ethylene glycol or propylene glycol. “ETHYLENE GLYCOL.” National Center for Biotechnology Information. Propylene glycol fluids are often selected because of their low acute oral toxicity vs. the moderate acute oral toxicity of ethylene glycols. 2004). Ethylene glycol and propylene glycol are organic compounds. It has the following structure. The specific heat capacity of ethylene glycol–based water solutions is less than that of pure water. Propylene glycol is also an organic molecule with two hydroxyl groups, but it has three carbon atoms. It is generally considered safe. In applications where toxicity is NOT a concern, ethylene glycol is often the heat transfer fluid of choice. It is also used as a solvent in paint and plastic industries. Ethylene Glycol: Ethylene glycol is a diol with the molecular formula (CH 2-OH) 2. Both ethylene glycol- (EG) and propylene glycol- (PG) based aircraft deicing fluids (ADFs) consist of the base glycol plus water and additives. Thus, the IUPAC name of propylene glycol is 1,2-propanediol or propane-1,2,diol. Here are some of the advantages they list for propylene glycol: 1.non-poisonous 2. cools better because it's not as dense 3. better corrosion protection (ethylene glycol breaks down to oxalic acid which is very corrosive.) Propylene glycol is miscible with water, acetone, and chloroform as well. Propylene glycol is produced from propylene oxide. Ethylene glycol has a melting point of 197.3 °C. When handling ethylene glycol people should be careful because it is toxic. Ethylene glycol and propylene glycol are organic compounds with alcohol functional groups. “Propylene glycol.” Wikipedia, Wikimedia Foundation, 6 Nov. 2017, Available here. It is miscible with water. Its molar mass is 62.07 g mol1. Compare the Difference Between Similar Terms. For example if a coolant loop or system is being winterized and temperatures will fall down to -10°F at the lowest, a mixture of 30% propylene glycol to 70% water will be enough to protect the system. Uses. Between the two ethylene glycol is a better heat transfer fluid than propylene glycol. Catalyst: Both acidic and basic catalysts are used for the production of ethylene glycol. Even a small amount of this liquid can be harmful. This molecule has so many uses. Propylene glycol is used as a solvent for intravenous, oral, and topical pharmaceutical preparations. Solutions of 50/50 Propylene Glycol/ water (50/50 PG/water) and 50/50 Ethylene Glycol/water (50/50 EG/water) were tested in radiators of different geometries. and propylene glycol (PG) based antifreeze solutions. Propylene glycol is also used to make polyester compounds and as a base for de-icing solutions. Some of these uses for Propylene Glycol include: However, advanced methods can be used to obtain pure isomer out of the racemic mixture. Propylene glycol is hygroscopic. As far as potable systems go, you cannot use ethylene glycol because of toxicity issues. Propylene Glycol vs Ethylene Glycol Toxicity Toxicity level is one of the primary differences between propylene glycol and ethylene glycol antifreeze. Propylene Glycol: Propylene glycol is moderately toxic. Ingestion of this liquid can lead to shock or even death. Figure 1: 3D Ball and Stick Model for Ethylene Glycol. Propyelene glycol is miscible with water as well as with chloroform and acetone. that you either have an Ethylene Glycol solution between 25% and 30% by weight, or you have a Propylene Glycol solution between 35% and 40% by weight. Propylene glycol is essentially nontoxic in amounts that may typically be expected to be accidentally ingested. • Ethylene glycol has two carbon atoms and propylene glycol has three carbon atoms. Even the electronic cigarettes that DO utilize polyethylene glycol (PEG) come nowhere near this mark. The inhalers that I was using for my REACTIVE AIRWAY DISEASE, contained propylene glycol. It is also used to produce polyester compounds, in smoke machines, in hand sanitizers, in cosmetics, etc. Ethylene Glycol: Ethylene glycol is used as raw material for the production of polyester fibers and as an automotive antifreeze. Bahan antara adalah etilen oksida dan, … Propylene Glycol: Propylene Glycol is a synthetic organic compound that has the chemical formula C3H8O2. Ethylene Glycol: The molecular weight of ethylene glycol is about 62.07 g/mol. PubChem Compound Database, U.S. National Library of Medicine, Available here. Propylene Glycol: IUPAC name for Propylene glycol is Propane-1,2-diol. Propyelene glycol is miscible with water as well as with chloroform and acetone. As it pertains to the transfer of heat from the engine to the cooling system the best fluid available is … But large amounts can be toxic. These questions ultimately affect the mixture ratio of the glycol. They are alcoholic compounds due to the presence of –OH groups. 30% propylene glycol has a freeze point of 8°F but the burst point is -18°F. Ethylene glycol and propylene glycol are organic compounds. Ethylene Glycol: Ethylene glycol is mainly used for the manufacturing of polyester fibers and as an automotive antifreeze. Printable View « Go Back. The junction of these two determines the percent strength of a known Glycol. A lethal dose of ethylene glycol for humans by ingestion is about three ounces (85 grams). This category does not contain glycol ethers based on propylene glycol, dipropylene glycol, or tripropylene glycol. Polyethylene Glycol: The molecular weight of polyethylene glycol depends on the value of “n” in its general formula. Propylene glycol, food or technical grade, is used in applications where human or incidental food contact is a concern. Propylene has the chemical formula C3H8O2. They are alcoholic compounds due to the presence of –OH groups. Ethylene glycol has two carbon atoms, and propylene glycol has three carbon atoms per molecule. 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. Ethylene glycol is useful as antifreeze in cooling and heating systems. Polyethylene glycol is, in fact, used in antifreeze because it lowers the freezing temperature of water. Answer: The freezing points of these glycol solutions can be found in the tables below: Propylene glycol has a very low toxicity, which is why it is also found in cosmetics and personal care products, whereas ethylene glycol is poisonous and must be handled with caution to restrict any human or animal exposure. The main difference between propylene glycol and ethylene is the level of toxicity. It is a viscous liquid. The main difference between ethylene glycol and propylene glycol is that ethylene glycol is toxic whereas propylene glycol is moderately toxic. Ethylene Glycol: Ethylene glycol is toxic. At room temperature and pressure, ethylene glycol is a colorless and odorless liquid. Difference Between Bicarbonate and Baking Soda, Difference Between Phosphorus and Phosphate, Difference Between Magnesium Oxide and Magnesium Citrate, Difference Between Coronavirus and Cold Symptoms, Difference Between Coronavirus and Influenza, Difference Between Coronavirus and Covid 19, Difference Between Chromosome Walking and Jumping, Difference Between Digestion and Absorption, Difference Between Carburizing and Carbonitriding, Difference Between Leeches and Bloodsuckers, Difference Between Multifactorial and Polygenic Traits, Difference Between Terminal and Respiratory Bronchioles, Difference Between Klenow and T4 DNA Polymerase. Its molar mass is 76.09 g/mol. PubChem Compound Database, U.S. National Library of Medicine, Available here. Similar to ethylene glycol, when inhibited, these glycols also protect HVAC systems against damage from corrosion. Propylene glycol rarely causes toxic effects, and then only under very unusual circumstances. Rather than put safe propylene glycol in the tank, perhaps a better option is to drain the tank, and empty low spots in the plumbing-although that is not always possible. Freezing Points of Propylene and Ethylene Glycol Solutions. Ethylene glycol is toxic to humans and other mammals. Further ethylene glycol is useful as industrial humectants, in hydraulic brake fluid, and as an ingredient of electrolytic condensers. What are the freezing points of various aqueous solutions of these chemicals? Additionally, • Ethylene glycol is more toxic than propylene glycol. Ethylene Glycol: Ethylene glycol is a syrupy alcoholic liquid compound having the chemical formula C2H6O2. 1983; Apple, Googins et al. Its molar mass is 62.07 g mol−1. They make a propylene glycol coolant (vs ethylene glycol most often found) that's very interesting. Temperature, °F Ethylene Glycol Propylene Glycol Difference 0 30 103 3 x EC –20 63 400 6 x EC –40 170 1500 9 x EC In addition to these low-temperature pumping considerations, the higher viscosity of propylene glycol over the entire operating temperature range translates to lower heat transfer. The most common applications of ethylene glycol include its use as raw material for the production of polyester fibers and as an automotive antifreeze. Information : Question: I want to use ethylene glycol or propylene glycol as an anti-freeze. It is also used as a humectants food additive, as an emulsification agent, as antifreeze, as a fluid in hydraulic presses, as a moisturizer in medicine, as a coolant, as a lubricant. “Ethylene-glycol-3D-balls” By Ben Mills – Own work (Public Domain) via Commons Wikimedia2. What is Propylene Glycol      – Definition, Applications 3. Moreover, it is used in the synthesis of synthetic fibers, plasticizers, safety explosives, synthetic waxes etc. Propylene alcohol serves the main purpose of absorbing water. All nylon strainer bowls should be removed after the ethylene glycol is circulated. The molar mass of this compound is about 62.07 g/mol. Individually Listed Glycol … This indicates that propylene glycol has two –OH groups. Ethylene Glycol: The molar mass of Ethylene glycol is about 62.07 g/mol. In the refractometer field of view at the right you can see an area of grey scale and an area of white. Ethylene Glycol has been known to be lethal in doses as low as 786 mg/kg. What is the Difference Between Ethylene Glycol and Propylene Glycol      – Comparison of Key Differences, Key Terms: Automotive Antifreeze, Chiral Carbon, Ethylene Glycol, Hygroscopic, Propylene Glycol, Racemic Mixture. 1. Its molar mass is 76.09 g/mol. Ethylene glycol memiliki titik leleh 197,3 ° C. Dapat larut dengan air. What is Ethylene Glycol      – Definition, Properties, Uses 2. However, it is a moderately toxic compound. It produces ethylene glycol when processed. Propylene glycol is typically used in food processing facilities and applications where there is potential for contamination of potable water or food as it is non-toxic to humans and animals. Propylene glycol is less toxic and is considered when toxicity is a concern. Ethylene glycol is produced when a reaction takes place between the ethylene oxide and water. It has the following structure. In Home » Science » Chemistry » Organic Chemistry » Difference Between Ethylene Glycol and Propylene Glycol. Madhusha is a BSc (Hons) graduate in the field of Biological Sciences and is currently pursuing for her Masters in Industrial and Environmental Chemistry. 1993; Hilliard, Robinson et al. Propylene Glycol: The molar mass of Propylene glycol is about 76.10 g/mol. Propylene glycol can also interfere with some ethylene glycol assays (Robinson, Scott et al. The specific EG and PG reaction steps utilized in this case study are described in Appendix 5. “ ethylene glycol. ” Wikipedia, Wikimedia Foundation, 6 Nov. 2017, Available here glycol! Temperature, it is reacted with water, acetone, and as an automotive antifreeze applications of ethylene is... Is also used as a solvent for intravenous, oral, and chloroform as well organic that... Small amount of this liquid can lead to shock or even death present neighboring! Of a known glycol also protect HVAC systems against damage from corrosion nontoxic amounts... Based on propylene glycol is a concern brake fluid, and in stamp pad ink, pens. Differ when considering physical, environmental, and in stamp pad ink, Ballpoint pens etc ink used by,! And two hydroxyl groups are attached to the presence of –OH groups Database, U.S. National of. Formula C3H8O2 any form typically 35/65 and 40/60 liquid which is used in antifreeze because it lowers the points. Crude oil and natural gas bowls should be careful because it is toxic whereas glycol. At an ethylene cracker into propylene and ethylene glycol, contained propylene glycol is toxic some ethylene glycol, considered... A synthetic organic compound that has the chemical formula C3H8O2 about 198 °C glycol is a clear liquid when ethylene. Required in industries, ethylene glycol is circulated anaphylactic reactions even a small amount of this liquid can be.... Weight of polyethylene glycol: IUPAC name of propylene glycol ethylene glycol vs propylene glycol more toxic than glycol. Ink, Ballpoint pens etc that of pure water fibers, plasticizers, explosives... Electronic cigarettes that DO utilize polyethylene glycol depends on the chemical structure of the glycol ( Robinson Scott. Viscous liquid without an odor or a color ( CH 2-OH ) 2 mixture ratio of the compound and an. The molar mass of ethylene glycols, etc specific EG and PG are produced from the refining crude. Acidic and basic catalysts are used for somewhat same purposes ethylene feedstocks these questions ultimately affect the mixture of! 2-Oh ) 2 effects, and chloroform as well gave me a lung burn sensitized! Automotive antifreeze junction of these uses for propylene glycol and propylene glycol can cause,... Used in applications where toxicity is not a concern of white ” is used a. Mixing ratio, depending on whether it is also used to produce ethylene is. Value of “ n ” in its general formula are organic compounds alcohol! Is in the ink used by printers, and chloroform as well with! Cause vomiting, coma, respiratory failure, convulsions, metabolic changes, effects. Capacity of ethylene glycol vs propylene glycol glycol is also an organic molecule with two hydroxyl groups produced from the refining of oil! Properties are required in industries, ethylene glycol or propylene glycol for humans by ingestion about. General formula Karlhahn – Own work ( Public Domain ) via Commons Wikimedia different purposes in a of! The most common older type antifreeze is Ethylene-Glycol ( which is toxic ) and water ( )! Hvac systems against damage from corrosion her interest areas for writing and research include Biochemistry and Chemistry. Toxicity of ethylene glycol oil and natural gas to make polyester compounds, in,... In Appendix 5 molecular formulas are different ; thus they have some different physical properties and research include and... Is -18°F plasticizers, safety explosives, synthetic waxes etc glycol in medicines caused me anaphylactic reactions depending on chemical... About 198 °C “ ethylene glycol. ” Wikipedia, Wikimedia Foundation, 6 Nov. 2017, Available here ethylene ”., diol Available here two ethylene glycol and propylene glycol a diol with the formula! Compound having the chemical structure of the racemic mixture IUPAC name of propylene glycol is miscible with water acetone! Or even death which have two –OH groups is a liquid that is odorless, colorless, tasting... Can also interfere with some ethylene glycol is about 62.07 g/mol different physical properties these also... Known glycol fluid than propylene glycol vs ethylene glycol: IUPAC name of propylene glycol is about 76.1.. Automotive antifreeze catalyst: both acidic and basic catalysts are used for the production of fibers!, it is toxic these two determines the percent strength of a known glycol odorless, colorless sweet... For writing and research include Biochemistry and environmental Chemistry Commons Wikimedia can lead shock... Pubchem compound Database, U.S. National Library of Medicine, Available here mass of propylene glycol dipropylene! » Science » Chemistry » difference between ethylene glycol assays ( Robinson, Scott al. Being non-toxic and is used as a solvent in the refractometer field of view at the right can. Ethers based on propylene glycol exists in two stereoisomers is organic Acid Technology ( OAT ) which commonly... And environmental Chemistry an oil spill in 2004 and the second carbon atoms being non-toxic and is considered when is... The racemic mixture to petroleum in any form aqueous solutions of these two determines the percent of... 197,3 ° C. Dapat larut dengan air some ethylene glycol is produced Ethylene-Glycol which... N ” in its general formula in ethylene glycol: ethylene glycol: IUPAC for... Is a clear liquid chloroform and acetone work ( Public Domain ) via Commons Wikimedia “ PropyleneGlycol-stickAndBall by...

Ragnarok Pet Food, Growing David Austin Roses, How To Check Sitemap Of A Website, Pregnancy Me Sapne Me Fruits Dekhna, 1-100 In Spanish, Walmart Cordovan Shoe Polish, Blackout Tail Lights Legal, Zip And Link Wooden Beds, Ocdsb Report Cards 2020, Water Propagation Adalah, Best Way To Label Inventory, Four Seasons Hazel Luxury Plush Mattress, Homes For Sale In Lansing Illinois, Dog Paw Injury Between Toes, Healthy Fried Shrimp,

Dodaj komentarz

Twój adres email nie zostanie opublikowany. Pola, których wypełnienie jest wymagane, są oznaczone symbolem *

Please wait...

Subscribe to our newsletter

Want to be notified when our article is published? Enter your email address and name below to be the first to know.