Ethylene glycol; CAS Number: ; EC Number: ; Synonym: 1,2- Ethanediol; Linear Formula: C2H6O2; find Sigma-E MSDS, related. Ethylene glycol; MEG; 1,2-Ethanediol; 1,2-Dihydroxyethane. Recommended Use of the Chemical and Restrictions on Use. Coolant and antifreeze; heat transfer. Ethanediol (Ethylene glycol) MSDS. Section 1: Chemical Product and Company Identification. Product Name: Ethylene glycol. Catalog Codes.
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Ethylene glycol is used as a protecting group in organic synthesis to protect carbonyl compounds such as ketones and aldehydes.
Archived from the original on 28 December It is one of only a few treatments that are successful in dealing with rot in wooden boats, and is relatively cheap. Ingestion of sufficient amounts is fatal if untreated. Byethylene glycol was being used by almost all dynamite manufacturers.
Other names Ethylene glycol 1,2-Ethanediol Ethylene alcohol Hypodicarbonous acid Monoethylene glycol 1,2-Dihydroxyethane. Part of the Automobile series. Wurtz named his new compound “glycol” because it shared qualities with both ethyl alcohol with one hydroxyl group msda glycerin with three hydroxyl groups. Ethylene glycol is highly toxic.
Carbide maintained a monopoly on the direct oxidation process untilwhen the Scientific Design process was commercialized and offered for licenses.
Ethylene glycol is also commonly used in chilled-water air-conditioning systems that place either the chiller or air handlers outside, or systems that must cool below the freezing temperature of water. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst e. Household pets are especially susceptible to msda glycol poisoning from vehicle antifreeze leaks.
The mdss in boiling temperature is due to pure ethylene glycol having a much higher boiling point and lower vapor pressure than pure water, as is typical with most binary mixtures of volatile liquids.
Cooling due to other effects such as air draft from fan etc. The ethylene glycol either gains energy from the source lake, ocean, water well or dissipates heat to the sink, depending on whether the system is being used for heating or cooling. Molecules detected in outer space.
Ethylene glycol has seen some use as a rot and fungal treatment for wood, both as a preventative and a treatment after the fact. Not to be confused with Propylene glycolDiethylene glycolor Glycol.
Ethylene glycol – Wikipedia
Propylene glycol Diethylene glycol Triethylene glycol Polyethylene glycol. Retrieved April 25, Aluminium monochloride Aluminium monofluoride Aluminium monoxide Argonium Carbon monophosphide Carbon monosulfide Carbon monoxide Carborundum Cyanogen radical Diatomic carbon Fluoromethylidynium Hydrogen chloride Hydrogen fluoride Hydrogen molecular Hydroxyl radical Iron II oxide Magnesium monohydride cation Methylidyne radical Nitric oxide Nitrogen molecular Nitrogen monohydride Nitrogen sulfide Oxygen molecular Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon mononitride Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfur monohydride Sulfur monoxide Titanium oxide.
Moreover, the injection rate for hydrate suppression is much lower than the circulation rate in a glycol dehydration tower. In this application, ethylene glycol flows down from the top of a tower and meets a rising mixture of water vapor and hydrocarbon gases. Because of its high boiling point and affinity for water, ethylene glycol is a useful desiccant.
Ethylene glycol is produced from carbon monoxide in countries with large coal reserves and less stringent environmental regulations. Alkanediols Alcohol solvents Household chemicals Hazardous air pollutants Commodity chemicals Vicinal diols. Diatomic Aluminium monochloride Aluminium monofluoride Aluminium monoxide Argonium Carbon monophosphide Carbon monosulfide Carbon monoxide Carborundum Cyanogen radical Diatomic carbon Fluoromethylidynium Hydrogen chloride Hydrogen fluoride Hydrogen molecular Hydroxyl radical Iron II ethahediol Magnesium monohydride cation Methylidyne radical Nitric oxide Nitrogen molecular Nitrogen monohydride Nitrogen sulfide Mdds molecular Phosphorus monoxide Phosphorus mononitride Potassium chloride Silicon carbide Silicon mononitride Silicon monoxide Silicon monosulfide Sodium chloride Sodium iodide Sulfur monohydride Sulfur monoxide Titanium oxide.
Ethylene glycol is also used in the manufacture of some vaccinesbut it is not itself present in these injections. Ethylene glycol is widely used to inhibit the formation of natural eyhanediol clathrates hydrates in long multiphase pipelines that convey natural gas from remote gas fields to a gas processing facility. It is an odorless, colorless, sweet-tasting, viscous liquid. Archived from the original on July 14, This reaction can be catalyzed by either acids or basesor can occur at neutral pH under elevated temperatures.
They are generally considered safer to ethanexiol, as propylene glycol does not taste as good [note 1] and is converted in the body to lactic acida normal product of metabolism and exercise. This page was last edited on 1 Decemberat The major byproducts are the oligomers diethylene glycoltriethylene glycoland tetraethylene glycol.
The 1,3-dioxolane protecting group can thereafter be removed by further acid hydrolysis. The freezing point depression of some mixtures can be explained as a colligative property of solutions ,sds, in highly-concentrated mixtures such as the example, deviations from ideal solution behavior are expected due to the influence of intermolecular forces. In DecemberUS antifreeze manufacturers agreed voluntarily to add a bitter flavoring to all antifreeze that is sold in the consumer market of the US.
1-Phenyl-1,2-ethanediol() MSDS Melting Point Boiling Point Density Storage Transport
Industrial-grade propylene glycol usually has a slightly bitter or acrid taste due to impurities. Upon ingestion, ethylene glycol is oxidized to glycolic acidwhich is, in turn, oxidized to oxalic acidwhich is toxic.
From Wikipedia, the free encyclopedia. Ethylene glycol is commonly used as a preservative for biological specimens, especially in secondary schools during dissection as a safer alternative to formaldehyde. The carbon dioxide comes in part from the ethylene oxide production, where a part of the ethylene is completely oxidized.
The caterpillar of the Greater wax moth, Galleria mellonellahas gut bacteria with the ability to degrade polyethylene PE into ethylene glycol. So, while providing freeze protection and an increased boiling point, ethylene glycol lowers the specific heat capacity of water mixtures relative to pure water.
Dry gas exits from the top of the tower. Retrieved October 11, Large bubbles in cooling passages will be self-sustaining or grow larger, with virtually the complete loss of cooling in that spot.
Consumer Specialty Products Association. Ethylene glycol is used in the natural gas industry to remove water vapor from natural gas before further processing, in much the same manner as triethylene glycol TEG.
It has been used in a few cases to treat partially rotted wooden objects to be displayed in museums. The glycol and water are separated, and the glycol recycled. Elsevier, Ruthenium catalyzed hydrogenation of dimethyl oxalate to ethylene glycolJ. Ethylene glycol 1,2-Ethanediol Ethylene alcohol Hypodicarbonous acid Monoethylene glycol 1,2-Dihydroxyethane.
It and its toxic byproducts first affect the central nervous systemthen the heart, and finally the kidneys. The major use of ethylene glycol is as a medium for convective heat transfer in, for example, automobiles and liquid-cooled computers.