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DIETHYLENE GLYCOL METHYL ETHYL ETHER

Diethylene Glycol Methyl Ethyl Ethermonosodium salt was prepared from diethylene glycol mono-ethyl ether) and sodium hydroxide with benzene as water carrier. Then Diethylene Glycol Methyl Ethyl Ether(DEGMEEE) was synthesized through Williamson. The influence of temperature and time of reaction and mass ratio of CH3Cl to diethylene glycol mono-ethyl ether to the yield of Diethylene Glycol Methyl Ethyl Etherwas studied.

 

CAS NUMBER: 1002-67-1

SYNONYM:

2,5,8-Trioxadecane; ethylmethylether diethylenglykolu; 2-ethoxyethyl 2-methoxyethyl ether; 1-ethoxy 2methoxyethoxy)ethane;  Ethane,1-ethoxy-2-(2-methoxyethoxy)-; Diethylene glycol methyl ethyl ether; DiethyleneGlycolMethylEthylEtherC7H16O3; Diethylene Glycol Methyl Ethyl Ether(DEGMEE)

Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is an organic compound with the formula (HOCH2CH2)2O.Diethylene Glycol Methyl Ethyl Ether is a colorless, practically odorless, poisonous, hygroscopic liquid with a sweetish taste. It is miscible in water, alcohol, ether, acetone, and ethylene glycol. DEG is a widely used solvent. DEG is produced by the partial hydrolysis of ethylene oxide. Depending on the conditions, varying amounts of DEG and related glycols are produced. The resulting product is two ethylene glycol molecules joined by an ether bond, Diethylene Glycol Methyl Ethyl Etheris derived as a co-product with ethylene glycol and triethylene glycol. Diethylene Glycol Methyl Ethyl Ether(DEGMEE)is an organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically odorless, poisonous, hygroscopic liquid with a sweetish taste. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is miscible in water, alcohol, ether, acetone, and ethylene glycol. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is a widely used solvent. Diethylene Glycol Methyl Ethyl Ether(DEGMEE), CH2OHCH2OCH2CH2OH, is similar in properties to MEG (mono ethylene glycol), but Diethylene Glycol Methyl Ethyl Ether(DEGMEE) has a higher boiling point, viscosity, and specific gravity. MEG is the raw material used in the production of polyester fiber, PET resins, alkyds, and unsaturated polyesters.

Diethylene Glycol Methyl Ethyl Ether(DEGMEE)is used in the manufacture of unsaturated polyester resins, polyurethanes and plasticizers.Diethylene Glycol Methyl Ethyl Ether is a water-soluble liquid, boiling point 245 C, and is soluble in many organic solvents. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is produced by the partial hydrolysis of ethylene oxide. Depending on the conditions, varying amounts of Diethylene Glycol Methyl Ethyl Ether(DEGMEE) and related glycols are produced. The resulting product is two ethylene glycol molecules joined by an ether bond, Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is derived as a co-product with ethylene glycol and triethylene glycol. TCC’s Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is used as a dehydrating agent for natural gas; a raw material for the production of plasticizers and polyester resins; a humectant; a textile lubricant and coupling agent; a solvent in textile dyeing and printing; a constituent of hydraulic fluids; a plasticizer for paper, cork and synthetic sponges; a solvent in printing inks; a raw material for the production of esters used as emulsifiers, demulsifiers, and lubricants; and a selective solvent for aromatics in petroleum refining. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is the second member of a homologous series of dihydroxyalcohols.

Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is produced in the Master Process by the direct hydration of ethylene oxide. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is co-produced with MEG and TEG. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is used in a variety of applications and is only available in one single high purity grade. The markets for DEG products are polyester fibres, polyethylene terephthalate (PET) plastics, coolants in automobile antifreeze, and resins. The excellent humectant (hygroscopicity) property of Diethylene Glycol Methyl Ethyl Ether(DEGMEE) also makes it ideal for use in fibres treatment, paper, adhesives, printing inks, leather and cellophane. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is also used for the removal of water from gas streams (dehydration). Shell Chemicals does not sell to customers that use Diethylene Glycol Methyl Ethyl Ether(DEGMEE) in theatrical fogs or other artificial smoke generator applications, in the manufacture or preparation of foods or pharmaceuticals where glycol is not further reacted to produce a derivative product, or in aircraft de-icing applications.However, in applications where vapours or mists are created, inhaling may cause a mild burning sensation in the nose, throat and lungs. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) intake can be fatal if a large volume is swallowed. Diethylene Glycol Methyl Ethyl Ethermay cause damage to the kidney through prolonged or repeated exposure. No ceiling on worker exposure has been set by the American Conference of Governmental Hygienists (ACGIH).

Some countries, however, have established a Workplace Exposure Limit (WEL), as in the UK where the WEL has been set at 23 ppm. If there is a potential for exposure above these limits, proper protective clothing and appropriate respiratory protection is required. Diethylene Glycol Methyl Ethyl Etheris readily biodegradable, has a low potential to bioaccumulate and has low toxicity to aquatic organisms. Diethylene Glycol Methyl Ethyl Etheris not flammable, unless preheated. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is an organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically odorless, poisonous, and hygroscopic liquid with a sweetish taste. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is miscible in water, alcohol, ether, acetone, and ethylene glycol. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is a widely used solvent. Diethylene Glycol Methyl Ethyl Ether(DEGMEE) can be a contaminant in consumer products; this has resulted in numerous epidemics of poisoning since the early 20th century Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is used in the manufacture of saturated and unsaturated polyester resins, polyurethanes, and plasticizers.

Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is used as a building block in organic synthesis, e.g. of morpholine and 1,4-dioxane. It is a solvent for nitrocellulose, resins, dyes, oils, and other organic compounds. It is a humectant for tobacco, cork, printing ink, and glue.Diethylene Glycol Methyl Ethyl Ether is also a component in brake fluid, lubricants, wallpaper strippers, artificial fog and haze solutions, and heating/cooking fuel.In personal care products (e.g. skin cream and lotions, deodorants), Diethylene Glycol Methyl Ethyl Ether(DEGMEE) is often replaced by selected Diethylene Glycol Methyl Ethyl Ethers. A dilute solution of Diethylene Glycol Methyl Ethyl Ethercan also be used as a cryoprotectant; however, ethylene glycol is much more commonly used. Most ethylene glycol antifreeze contains a few percent Diethylene Glycol Methyl Ethyl Ether(DEGMEE), present as an byproduct of ethylene glycol production.We report on the polymerization kinetics of thermoresponsive poly Diethylene Glycol Methyl Ethyl Ether brushes, which are used in novel cell release coating, on curved spherical silica nanoparticles (NPs with radii of 23 ± 5 nm, 70 ± 13 nm, and 148 ± 16 nm) and aligned cylindrical silicon nanowires (SiNWs with radii of 155 ± 10 nm and 391 ± 15 nm and a length of 3.75 ± 0.30 μm).

The polymer brushes, which were synthesized by surface-initiated atom transfer radical polymerization (SI-ATRP) and additionally surface-initiated activator regenerated by electron transfer (SI-ARGET-ATRP) approaches, were analyzed by field emission scanning electron microscopy, contact angle measurements, spectroscopic ellipsometry, time-of-flight secondary ion mass spectrometry, gel permeation chromatography, and thermal gravimetric analysis. On spherical NPs Diethylene Glycol Methyl Ethyl Etherwas found that with increasing NP size thinner Diethylene Glycol Methyl Ethyl Etherbrushes with higher grafting density and higher dispersities were obtained. The apparent kinetics of brush growth increased with decreasing NP size. Likewise, on SiNWs thinner Diethylene Glycol Methyl Ethyl Etherbrushes and slower kinetics were observed with increasing wire radius. For SI-ARGET-ATRP, the top regions between the SiNWs were completely filled With Diethylene Glycol Methyl Ethyl Etherbrushes; however, as confirmed by TGA, the overall occupied fractional volume of polymer in the wire-covered substrates was <50%, implying a tapered brush morphology on the SiNW sidewalls. An overall kinetic profiles demonstrated that the brush thickness and growth rates increased on both NPs and SiNWs with increasing curvature, which is attributed to increasingly relaxed chain confinement during brush growth. A better understanding of Diethylene Glycol Methyl Ethyl Ether-brush functionalized curved interfaces will be beneficial for the development of optimized controllable thermoresponsive coatings on curved supports and nanomaterials, which can be expanded to the fields of drug delivery, cell studies, and beyond.

Multi-responsive (Diethylene Glycol Methyl Ethyl Ether) methyl ether methacrylate–methacrylic acid (DEGMEEE–MAA) copolymers were synthesised for the first time via RAFT polymerisation, and the structure–activity interplay of statistical and block copolymers in solution was compared. In addition to MAA, DEGMEEE was also copolymerised with 2-(dimethylamino)ethyl methacrylate (DMAEMA) to generate two sets of well-defined weakly acidic or weakly basic copolymers, respectively. The temperature, pH and salt-responsive properties of all polymers was determined via UV-visible spectroscopy and dynamic light scattering, and their solution structures as a function of temperature were visualised via electron microscopy. Results from this study indicate that the DEGMEEE–MAA statistical and block copolymers display similar stimuli-responsive property trends to the well-characterised DEGMEEE–DMAEMA copolymers, and show similar lower critical solution temperature (LCST) modulations and aggregate structures in water.

This study reports on the dependence of the temperature-induced changes in the properties of thin thermoresponsive poly(diethylene glycol) methyl ether methacrylate (Diethylene Glycol Methyl Ethyl Ether) layers of end-tethered chains on polymer thickness and grafting density. Diethylene Glycol Methyl Ethyl Etherlayers with a dry ellipsometric thickness of 5–40 nm were synthesized by surface-initiated atom transfer radical polymerization on gold. To assess the temperature-induced changes, the adsorption of bovine serum albumin (BSA) was investigated systematically as a function of film thickness, temperature, and grafting density by surface plasmon resonance (SPR), complemented by wettability and quartz crystal microbalance with dissipation monitoring (QCM-D) measurements. BSA adsorption on Diethylene Glycol Methyl Ethyl Etherbrushes is shown to differ significantly above and below an apparent transition temperature. This surface transition temperature was found to depend linearly on the Diethylene Glycol Methyl Ethyl Etherthickness and changed from 35 °C at 5 nm thickness to 48 °C at 23 nm. Similarly, a change of the grafting density enables the adjustment of this transition temperature presumably via a transition from the mushroom to the brush regime. Finally, BSA that adsorbed irreversibly on polymer brushes at temperatures above the transition temperature can be desorbed by reducing the temperature to 25 °C, underlining the reversibly switchable properties of Diethylene Glycol Methyl Ethyl Etherbrushes in response to temperature changes.

Diethylene Glycol Methyl Ethyl Ethers are a well-known series of solvents and hydraulic fluids derived from the reaction of ethylene oxide and monoalcohols. Use of methanol as the alcohol results in a series of mono, di and triethylene glycol methyl ethers. The first in the series, Diethylene Glycol Methyl Ethyl Etheris well characterised and metabolises in vivo to methoxyacetic acid (MAA), a known reproductive toxicant. Metabolism data is not available for the di and triethylene glycol ethers (DEGMEE and TEGME respectively). This study evaluated the metabolism of these two substances in male rats following single oral gavage doses of 500, 1000 and 2000 mg/kg for DEGMEE and 1000 mg/kg for TEGME. As for EGME, the dominant metabolite of each was the acid metabolite derived by oxidation of the terminal hydroxyl group. Elimination of these metabolites was rapid, with half-lives <4 h for each one. Both substances were also found to produce small amounts of MAA (~0.5% for TEGME and ~1.1% for DEGMEE at doses of 1000 mg/kg) through cleavage of the ether groups in the molecules. These small amounts of MAA produced can explain the effects seen at high doses in reproductive studies using DEGMEE and TEGME.

IUPAC NAME:

2-Ethoxyethyl 2-methoxyethyl ether ; Diethylene glycol ethyl methyl ether ; Ethylmethylether diethylenglykol ; 1-Ethoxy-2-(2-methoxyethoxy)ethane ; Ethane, 1-ethoxy-2-(2-methoxyethoxy); Ether, 2-ethoxyethyl 2-methoxyethyl

TRADE NAME:

BRN 1698464; EINECS 213-690-5; UNII-LF64ICW5Y3; DOWANOL DE; EKTASOLVE DE

OTHER NAME:

10060-13-6; 77998-33-5; 1545739; 16774-56-4; 13586-38-4 13587-26-3

The ‘methyl’ group of Diethylene Glycol Methyl Ethyl Ethers is produced through the reaction of ethylene oxide with methanol (n = 1) and can produce a number of different molecules in. The lowest molecular weight member of the series, 2-methoxyethanol (or diethylene glycol methyl ether, EGME, where m = 1 and n = 1) is a very well understood substance regarding its biotransformation and toxicity. There is a large database of information showing that is toxic to reproduction, both to males (testicular toxicity) and females (developmental toxicity) (Dayan and Hales, 2014; Dieter, 1993; ECETOC, 2005; Foster et al., 1983; Hardin, 1983; NIOSH, 1991; Paustenbach, 1988; Starek-Świechowicz et al., 2015; Taketa et al., 2017; Welsch, 2005). The metabolism of EGME has been well studied. 2-methoxyacetic acid (MAA) has been established as the primary urinary metabolite in rats (accounting for 73–90% of urinary radioactivity depending on route of exposure), with a further 12% of the EGME dose exhaled as CO2 (Foster et al., 1984; Miller et al., 1983; Miller, 1987).

The ethylene glycol ethers can follow two main oxidative pathways of metabolism, either via alcohol and aldehyde dehydrogenase or via the microsomal CYP mixed function oxidase (MFO) (O-demethylation or O-dealkylation) (ECETOC, 2005). Accordingly, two major metabolic pathways were seen when EGME was administered to rats in drinking water (12–110 mg/kg bw), with MAA and monoethylene glycol (MEG) as major metabolites plus glucuronide and sulphate conjugates excreted in the urine (Medinsky et al., 1990). Urinary excretion only accounted for 40–50% of the dosed EGME, with the rest found in exhaled air (carbon dioxide or EGME), faeces, and residue in the carcass. Dermal application showed the same two metabolites, indicating that metabolism is at least qualitatively independent of dose route (ECETOC, 2005; Sabourin et al., 1992). The urinary metabolic routes identified following oral exposure are shown in Fig.

Optimizing Si/Al is 25, 38, 50, 80 four kinds of models of Na type molecular sieve, 1 mol/L concentration of ammonium nitrate by immersion, mixing, filtering, by means of the modified roasting, prepared a variety of models of H-ZSM-5 catalyst for synthesis of Diethylene Glycol Methyl Ethyl Etheracetate(DEGMEE). Carrier system research H-ZSM-5 zeolite catalyst in Diethylene Glycol Methyl Ethyl Etherand direct esterification of acetic acid catalytic activity and preparation method of catalyst, the synthesis of Diethylene Glycol Methyl Ethyl Etheroptimum conditions and catalyst, improve the raw material conversion rate, using XRD, TEM, FTIR and N2 adsorption-stripping way of catalyst, such as the characterization of the system. Experimental results show that in addition to the reaction temperature, time, alcohol acid mole ratio, catalyst mass, H-ZSM-5 zeolite catalyst, acid strength, stripping rate and competitive system will influence the final reaction of ester yield and selectivity. Under 85~92 temperature, using cyclohexane as dehydrant, alkyd ratio of 1:1.1, catalyst mass was 2 %, bear the load of acid amount was 15 %, 60 minutes, DEGMEE yield up to 96.94 %, 100 % acetic acid conversion rate. This is mainly because acid combined with molecular sieve much channel structure play a role in the reaction.

The observed pattern of the energetic behavior has been well elucidated in terms of competitive water–water and water–ether H-bonding.ost likely due to that  Diethylene Glycol Methyl Ethyl Ether  promotes the activation of propene.  Diethylene Glycol Methyl Ethyl Etherin eyes,first check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. Immediately transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.  Diethylene Glycol Methyl Ethyl Etherin the skin; immediately flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, immediately call a physician and be prepared to transport the victim to a hospital for treatment.

Diethylene Glycol Methyl Ethyl Ethermonosodium salt was prepared from diethylene glycol mono-ethyl ether (C6H14O3) and sodium hydroxide with benzene as water carrier under n(NaOH)/n (C6H14O3) = 1. 5 : 1. 0. Then Diethylene Glycol Methyl Ethyl Ether(DEGMEEE) was synthesized through Williamson reaction from CH3Cl and CH3CH2O(CH2CH2O)2Na. The influence of temperature and time of reaction and mass ratio of CH3Cl to Diethylene Glycol Methyl Ethyl Etherto the yield of Diethylene Glycol Methyl Ethyl Etherwas studied. The quality of product was analyzed by GC and the structure of product was characterized by FT-IR and 1 H NMR. The results indicated that the suitable Wiliamson reaction conditions were as follows: reaction temperature 80℃, reaction time 4. 0 h, n(CH3Cl)/n(C6H14 O3) = 1. 4 : 1. The vield of Diethylene Glycol Methyl Ethyl Ethercould be more than 90%.

Diethylene Glycol Methyl Ethyl Etheris an organic compound with the formula HC(OC2H5)3. This colorless volatile liquid, the orthoester of formic acid, is commercially available. The industrial synthesis is from hydrogen cyanide and ethanol.I Diethylene Glycol Methyl Ethyl Ethermay also be prepared from the reaction of sodium ethoxide, formed in-situ from sodium and absolute ethanol, and chloroform: CHCl3 + 3 Na + 3 EtOH → HC(OEt)3 + ​3⁄2 H2 + 3 NaCl Diethylene Glycol Methyl Ethyl Etheris used in the Bodroux-Chichibabin aldehyde synthesis, for example: RMgBr + HC(OC2H5)3 → RC(H)(OC2H5)2 + MgBr(OC2H5) ; RC(H)(OC2H5)2 + H2O → RCHO + 2 C2H5OH . In coordination chemistry, Diethylene Glycol Methyl Ethyl Ether is used to convert metal aquo complexes to the corresponding ethanol complexes: [Ni(H2O)6](BF4)2 + 6 HC(OC2H5)3 → [Ni(C2H5OH)6](BF4)2 + 6 HC(O)(OC2H5) + 6 HOC2H5. Diethylene Glycol Methyl Ethyl Etheris an excellent reagent for converting compatible carboxylic acids to ethyl esters. Such carboxylic acids, refluxed neat in excess TEOF until low-boilers cease evolution, are quantitatively converted to the ethyl esters, without need for extraneous catalysis. Alternatively, added to ordinary esterifications using catalytic acid and ethanol, TEOF helps drive esterification to completion by converting the byproduct water formed to ethanol and ethyl formate. Diethylene Glycol Methyl Ethyl Etherare organic compounds in which an oxygen atom is connected to two carbon groups.  Unlike alcohols, ethers are fairly unreactive (except towards combustion). 

They are very common organic solvents, and some ethers also make good anesthetics. Simple ethers are named by naming the alkyl groups in alphabetical order and adding the word "ether" to the end.  In more complicated ethers, the ether group is named as an alkoxy substituent, in which the "yl" ending of alkyl groups is replaced by "oxy."  For example, a methyl group attached to an oxygen, OCH3, is named as a methoxy group.  In cyclic ethers, the prefix oxa- is used to indicate replacement of a carbon by an oxygen. Since ethers do not have a hydrogen connected to the oxygen atoms, they are not capable of forming hydrogen bonds to each other.  Thus, their boiling points are similar to those of alkanes of comparable molecular mass.  For example, propane, dimethyl ether, and ethanol have very similar molecular masses, but drastically different boiling points:

Diethylene Glycol Methyl Ethyl Ether  forms explosive peroxides on prolonged exposure to air. Diethylene Glycol Methyl Ethyl Ether  decomposition products may be sensitive to shock. The bulk chemical is stable for 2 weeks at temperatures up to 140° F when protected from light.  Diethylene Glycol Methyl Ethyl Ether  is incompatible with strong oxidizers.  Diethylene Glycol Methyl Ethyl Ether  is also incompatible with strong acids.  Diethylene Glycol Methyl Ethyl Ether  may react with peroxides, oxygen, nitric acid and sulfuric acid. . Glycol ethers are a group of solvents based on alkyl ethers of ethylene glycol or propylene glycol commonly used in paints and cleaners. These solvents typically have a higher boiling point, together with the favorable solvent properties of lower-molecular weight ethers and alcohols. The word "Cellosolve" was registered in 1924 as a United States trademark by Carbide & Carbon Chemicals Corp. (later named Union Carbide Corp.) for "Solvents for Gums, Resins, Cellulose Esters, and the Like".The first one was ethyl cellosolve (ethylene glycol monoethyl ether), with the name now generic[citation needed] for glycol ethers. Glycol ethers are either "e-series" or "p-series" glycol ethers, depending on whether they are made from ethylene oxide or propylene oxide, respectively. Typically, e-series glycol ethers are found in pharmaceuticals, sunscreens, cosmetics, inks, dyes and water-based paints, while p-series glycol ethers are used in degreasers, cleaners, aerosol paints and adhesives. Both E-series glycol ethers and P-series glycol ethers can be used as intermediates that undergo further chemical reactions, producing glycol diethers and glycol ether acetates. P-series glycol ethers are marketed as having lower toxicity than the E-series. Most glycol ethers are water-soluble, biodegradable and only a few are considered toxic.

Diethylene Glycol Methyl Ethyl Ether and ethanol react in accordance with the method of the invention to produce Diethylene Glycol Diethyl Ether . These two reactants also produce diethylene glycol monoethyl ether, which is also known as “Ethyl CARBITOL”.  Diethylene Glycol Methyl Ethyl Etheris used as a solvent in organic reactions due to its stability towards higher pH and its high boiling point. Diethylene Glycol Diethyl Ether is particularly involved in reactions utilizing organometallic reagents such as Grignard reactions and metal hydride reductions. Diethylene Glycol Methyl Ethyl Etheris also a solvent for hydroboration reactions with diborane. Miscible with water, ethanol, acetone, acetic acid, glycerine, pyridine and aldehydes. Slightly miscible with ether. Hygroscopic. Keep container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents. Diethylene Glycol Diethyl Ether is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 to < 1 000 tonnes per annum.

Diethylene Glycol Methyl Ethyl Etheris used in articles, in formulation or re-packing, at industrial sites and in manufacturing. Release to the environment of Diethylene Glycol Diethyl Ether can occur from industrial use, manufacturing of the substance, formulation of mixtures, in processing aids at industrial sites and as processing aid. Other release to the environment of Diethylene Glycol Diethyl Ether is likely to occur from: indoor use, indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters) and outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials). Diethylene Glycol Diethyl Ether can be found in complex articles, with no release intended: vehicles. Diethylene Glycol Diethyl Ether can be found in products with material based on: plastic (e.g. food packaging and storage, toys, mobile phones). Diethylene Glycol Methyl Ethyl Etheris used in the following products: laboratory chemicals and polymers. Diethylene Glycol Methyl Ethyl Etheris used in the following products: laboratory chemicals, pharmaceuticals and polymers.

Diethylene Glycol Methyl Ethyl Etheris used in the following areas, formulation of mixtures and/or re-packaging and scientific research and development. Diethylene Glycol Methyl Ethyl Etheris used for the manufacture of: chemicals, plastic Diethylene Glycol Diethyl Ether 's production and use as a high boiling reaction medium, and as a solvent for nitrocellulose, lacquers, resins, and organic syntheses may result in its release to the environment through various waste streams. If released to air, a vapor pressure of 0.52 mm Hg at 25 °C indicates  Diethylene Glycol Methyl Ethyl Etherwill exist solely as a vapor in the atmosphere. Vapor-phase  Diethylene Glycol Methyl Ethyl Etherwill be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 14 hours. If released to soil,  Diethylene Glycol Methyl Ethyl Etheris expected to have very high mobility based upon an estimated Koc of 39. Volatilization from moist soil surfaces is not expected to be an important fate process based upon an estimated Henry's Law constant of 1.1X10-7 atm-cu m/mole. 

Diethylene Glycol Methyl Ethyl Ethermay volatilize from dry soil surfaces based upon its vapor pressure. Biodegradation of  Diethylene Glycol Methyl Ethyl Etheris not expected to be an important fate process in soil or water based on biodegradation studies conducted with sewage seed. If released into water,  Diethylene Glycol Methyl Ethyl Etheris not expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization from water surfaces is not expected to be an important fate process based upon this compound's estimated Henry's Law constant. An estimated BCF of 3 suggests the potential for bioconcentration in aquatic organisms is low. Occupational exposure to  Diethylene Glycol Methyl Ethyl Ethermay occur through inhalation and dermal contact with this compound at workplaces where  Diethylene Glycol Methyl Ethyl Etheris produced or used. Monitoring data indicate that the general population may be exposed to  Diethylene Glycol Methyl Ethyl Ethervia inhalation of ambient air, ingestion of drinking water, and dermal contact with this compound and other products containing  Diethylene Glycol Diethyl Ether . 

Diethylene Glycol Diethyl Ether 's production and use as a high boiling reaction medium, and as a solvent for nitrocellulose, lacquers, resins, and organic syntheses may result in its release to the environment through various waste streams(SRC).products and electrical, electronic and optical equipment.Diethylene Glycol Methyl Ethyl Ether  complexes with dimethyl sulfide and diethyl ether are so strong that direct hydroboration does not proceed, and the addition of a decomplexing agent, such as boron trichloride, is necessary for hydroboration. Dichloroborane-1,4-dioxane complex is readily prepared as a pure, stable 6.3 M liquid by passing diborane into a solution of boron trichloride in 1,4-dioxane or from sodium borohydride and boron trichloride in 1,4-dioxane in the presence of 3% vol  Diethylene Glycol Methyl Ethyl Ether. we investigate a lowly flammable electrolyte formed by dissolving sodium trifluoromethanesulfonate (NaCF3SO3) salt in  Diethylene Glycol Methyl Ethyl Ether(TREGDME) solvent as suitable medium for application in Na-ion and Na/S cells. The study, performed by using various electrochemical techniques, including impedance spectroscopy, voltammetry, and galvanostatic cycling, indicates for the solution high ionic conductivity and sodium transference number (t+), suitable stability window, very low electrode/electrolyte interphase resistance and sodium stripping/deposition overvoltage.

Direct exposition to flame reveals the remarkable safety of the solution due to missing fire evolution under the adopted experimental setup. The solution is further investigated in sodium cells using various electrodes, i.e., mesocarbon microbeads (MCMBs), tin-carbon (Sn–C), and sulfur-multiwalled carbon nanotubes (S-MWCNTs). The results show suitable cycling performances, with stable reversible capacity ranging from 90 mAh g−1 for MCMB to 130 mAh g−1 for Sn–C, and to 250 mAh g−1 for S-MWCNTs, thus suggesting the electrolyte as promising candidate for application in sustainable sodium-ion and sodium-sulfur batteries. The highly oxygenated hydrocarbon  Diethylene Glycol Methyl Ethyl Ether  or triglyme (CH3O–(C2H4O–)3CH3) was found to efficiently reduce NOx under lean conditions over Ag/Al2O3, but gave a low NOx conversion over Cu-ZSM-5. Furthermore,  Diethylene Glycol Methyl Ethyl Ether  showed an extraordinary promoting effect when added together with propene as reducing agent for NOx over Ag/Al2O3 at low temperature.  Diethylene Glycol Methyl Ethyl Etherof their many favorable properties and specifically balanced amphiphilic nature, glymes (oligomeric ethylene glycol diethers) are of great technological and theoretical interest.

This study focuses on the phase equilibria and energetics of aqueous solutions of two important members of the glyme series, Diethylene Glycol Methyl Ethyl Etherand tetraethylene glycol dimethyl ether. For these systems, we carried out accurate measurements of water activity at two temperatures (298.15 and 313.15 or 318.15 K) in the whole composition range, boiling temperatures at three pressures (50, 70, and 90 kPa), and freezing temperatures in the water-rich region. The melting temperature and melting enthalpy of the neat glymes were also determined. We correlated our water activity data simultaneously with some related thermal data from the literature using an extended SSF-type excess Gibbs energy (GE) model. The established model descriptions provided not only particularly good fit of the underlying data but, as proven by due comparisons to other results from both the literature and this work, showed a superior performance, extrapolating very well to both higher and lower temperatures. The high-fidelity global modeling also enabled us to present a clear picture of the energetics of the two aqueous glymes. At near-ambient temperatures, both systems exhibit non-monotonous activity coefficient courses with composition, large exothermic effects, and remarkably deep drops of the entropy accompanying the mixing, their positive GE being entropy-driven. On increasing the temperature, the former features gradually decline while GE keeps about the same magnitude and becomes enthalpy-driven. Although both systems show a great tendency to phase splitting above the normal boiling temperature of water, our model calculations predicted the lower critical solution temperature behavior only for the aqueous solution of  Diethylene Glycol Methyl Ethyl Ether. 

Diethylene Glycol Methyl Ethyl Ether  ininhalation, immediately leave the contaminated area, take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.  Diethylene Glycol Methyl Ethyl Ether  in ingestion;do not induce vomiting. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and immediately call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. Do not induce vomiting. Immediately transport the victim to a hospital.

Diethylene Glycol Methyl Ethyl Etheris considered to be a safe and tolerable pharmaceutical-grade glycol ether when used at 99.9% purity. Diethylene Glycol Methyl Ethyl Etheralso acts as an intracutaneous depot for multiple drugs to reach different layers of the skin. The solvent is massively gaining demand in dermatology sector as Diethylene Glycol Methyl Ethyl Etherhas the ability to penetrate through the eisoderm of the skin and aid in healing the root cause. Owing to these factors, the product is anticipated to witness high growth in pharmaceutical and personal care application in near future. Ethylene oxide, which is precursor in manufacturing of Diethylene Glycol Monoethyl Ether, is highly regulated by multiple regulatory authorities such as U.S. EPA. These regulations impact the production and industrial consumption of ethylene oxide, thus affecting the entire manufacturing cycle of ethylene oxide-based products. Currently, U.S. is one of the major producers of ethylene oxide owing to abundant availability of feedstock. However, increased restrictions on ethylene oxide plants are anticipated to hinder its production, which, in turn, is expected to have a negative impact on Diethylene Glycol Methyl Ethyl Ethermanufacturers.

The solvent Diethylene Glycol Methyl Ethyl Etheris currently used in over 500 cosmetic products and has enabled the formulation of a topical 5% dapsone gel for the treatment of acne. Diethylene Glycol Methyl Ethyl Etheris anticipated that this common cosmetic ingredient will be a component in numerous future prescription topical products approved for the US market. Dermatologists are already treating patients that apply products containing 5–40% of this solvent multiple times each day. The Diethylene Glycol Methyl Ethyl Etherare used widely as solvents for resins, lacquers, paints, varnishes, dyes and inks, as well as components of painting pastes, cleaning compounds, liquid soaps, cosmetics and hydraulic fluids. Propylene and butylene glycol ethers are valuable as dispersing agents and as solvents for lacquers, paints, resins, dyes, oils and greases. Diethylene Glycol Methyl Ethyl Etheris used in the manufacture of unsaturated polyester resins, polyurethanes and plasticizers. Diethylene Glycol Methyl Ethyl Etheris a water-soluble liquid;  boiling point 245 C; soluble in many organic solvents. Diethylene Glycol Methyl Ethyl Etheris used as a humectant in the tobacco industry and in the treatment of corks, glue, paper and cellophane.

The ‘Diethylene Glycol Methyl Ethyl Ethers’ are a broad family of solvents and hydraulic fluids produced through the reaction of ethylene oxide and a monoalcohol (Bingham et al., 2001). In typical commercially available products, the alcohol can be methanol, ethanol, n- or isopropanol, n-butanol or n-hexanol. The number of ethylene oxide units in a single molecule can also vary, even to produce polymeric molecules, but a more typical level for commercial use is 1–4 (De Kettenis, 2005; ECETOC, 2005; OSPA, 2018). The generic formula can be expressed as: CnH2n+1(OCH2CH2)mOH where n is typically 1–6 and m is typically up . In addition to aliphatic alcohols, phenol may also be used as the alcohol. Finally, the terminal hydroxyl group of an ethylene glycol ether may in turn, under the right reaction conditions, react with another alcohol molecule to produce a dialkoxy molecule (often referred to as a ‘glyme’). Diethylene Glycol Methyl Ethyl Etheris derived as a co-product with ethylene glycol and triethylene glycol.

The industry generally operates to maximize MEG production. Ethylene glycol is by far the largest volume of the glycol products in a variety of applications. Availability of Diethylene Glycol Methyl Ethyl Etherwill depend on demand for derivatives of the primary product, ethylene glycol, rather than on Diethylene Glycol Methyl Ethyl Ethermarket requirements. Triethylene glycol, HO(C2H4O)3H, is a colourless, odourless, non-volatile, and hygroscopic liquid. Diethylene Glycol Methyl Ethyl Etheris characterised by two hydroxyl groups along with two ether linkages, which contribute to its high water solubility, hygroscopicity, solvent properties and reactivity with many organic compounds. Diethylene Glycol Methyl Ethyl Etheris used in the synthesis of morpholine and 1,4-dioxane. TEG is displacing Diethylene Glycol Methyl Ethyl Etherin many of these applications on account of its lower toxicity. Diethylene Glycol Methyl Ethyl Etherfinds use as a vinyl plasticizer, as an intermediate in the manufacture of polyester resins and polyols, and as a solvent in many miscellaneous applications. Diethylene Glycol Methyl Ethyl Etheris derived as a coproduct in the manufacture of ethylene glycol from ethylene oxide, and from "on-purpose" Diethylene Glycol Methyl Ethyl Etherproduction using Diethylene Glycol Monoethyl Ether. Some capacities are based on total capacity for ethylene glycols.

The main uses for Diethylene Glycol Methyl Ethyl Etherdepend upon its hygroscopic properties. Air conditioning systems use Diethylene Glycol Methyl Ethyl Etheras dehumidifiers and, when volatilized, as an air disinfectant for bacteria and virus control. Diethylene Glycol Monoethyl Ether, having high boiling point and affinity for water, are employed as liquid desiccant for the dehydration of natural gas. The dehydration means the removal of water vapor in refinery tower so that dry hydrocarbon gases can exit from the top of the tower. There are wide range of glycol ethers which have bifunctional nature of ether and alcohol. cellosolves are monoether derivatives of ethylene glycol. They are excellent solvents, having solvent properties of both ethers and alcohols.

 

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