Definition & Meaning | English word GLYCOLS

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Definitions of GLYCOLS

1. plural of glycol.

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Examples of Using GLYCOLS in a Sentence

• phthalates, like DEHP, and adipates, like bis(2-ethylhexyl) adipate), polyalkylene glycols (PAG), organophosphate (e.
• These products include detergents, thickeners, solvents, plastics, and various organic chemicals such as ethylene glycol, ethanolamines, simple and complex glycols, polyglycol ethers, and other compounds.
• Removal of water is achieved by cryogenic condensation, absorption into glycols, and absorption onto desiccants such as silica gel.
• When ethylene and propylene react with oxygen we obtain ethylene oxide (EO) and propylene oxide (PO), from which the polyalkylene glycols are produced by means of polymerization.
• Deicing can be accomplished by mechanical methods (scraping, pushing); through the application of heat; by use of dry or liquid chemicals designed to lower the freezing point of water (various salts or brines, alcohols, glycols); or by a combination of these different techniques.
• TEG is prepared commercially as a co-product of the oxidation of ethylene at high temperature in the presence of silver oxide catalyst, followed by hydration of ethylene oxide to yield mono(one)-, di(two)-, tri(three)- and tetraethylene glycols.
• The company has a strategic stake/or has promoted companies like Tuticorin Alkali Chemicals and Fertilizers, a company that produces Soda Ash and co-produces Ammonium Chloride, Tamilnadu Petroproducts, a company that produces Lineal Alkyl Benzene and Manali Petrochemicals, a company that produces Propylene Oxide, Propylene Glycols and Polyols.
• IBX is notable for oxidizing vicinal diols (or glycols) to diketones without cleavage of the carbon-carbon bond, but oxidative cleavage of glycols to two aldehydes or ketones can occur when modified conditions are used (elevated temperatures or trifluoroacetic acid solvent).
• Humectants, typically polyols or glycols, that can hydrogen bond with water in the skin and hair and reduce water loss.
• When reacted with nonhalogenated glycols, it forms halogenated polyols that can be used as flame retardants in polyurethane foams.
• Polyethylene glycols of various molecular weights and high-ionic strength salts such as ammonium sulfate and sodium citrate that induce protein precipitation when used in high concentrations are classified as precipitants, while certain other salts such as zinc sulfate or calcium sulfate that may cause a protein to precipitate vigorously even when used in small amounts are considered adjutants.
• Typical polyols used are glycols including ethylene glycol, propylene glycol, and diethylene glycol; typical acids used are phthalic acid, isophthalic acid, terephthalic acid, and maleic anhydride.
• Polymers, such as dextrans and polyethylene glycols, are frequently used to precipitate proteins because they have low flammability and are less likely to denature biomaterials than isoelectric precipitation.
• The company has a wide range of products that include acetone, aromatics, ethylene oxide, ethylene glycols, alkenes, nonene, phenol, polyethylene, polyols, and solvents.
• Glycols typically seen in industry include triethylene glycol (TEG), diethylene glycol (DEG), ethylene glycol (MEG), and tetraethylene glycol (TREG).
• In natural gas and oil pipelines, binder materials such as paraffins, glycols, and asphaltenes marry up with fine ferrous and sand particles trapping to the magnetic fields when passing through the black powder separators.
• Emmons went on to discuss the preparation of trifluoroperacetic acid and numerous applications of the new reagent, including: oxidation of nitrosamines to nitramines; the Baeyer–Villiger oxidations of ketones to esters; and the conversion of alkenes to epoxides (in the presence of a buffer) or to glycols (without the buffer).
• Though no hazardous levels of chemicals were detected and no one aside from three firemen with minor shake injuries were injured, some people said they sensed a metallic taste in their mouths (the company has a rail spur that brings in rail cars carrying solvent-distribution products such as glycol ethers, alcohol, aliphatic hydrocarbons, alkalis, aromatic hydrocarbons, chlorinated solvents, acids, glycol ether esters, surfactants, glycols and glycerins, plasticizers and esters).

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