Contact with hydrogen peroxide leads to an explosive reaction. It can form an explosive mixture with air. It is soluble in acetone, ethanol, ethyl ether, aromatic solvents and halocarbons.
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Ethyl acrylate is produced by acid-catalysed esterification of acrylic acid, which in turn is produced by oxidation of propylene. It may also be prepared from acetylene, carbon monoxide and ethanol by a Reppe reaction. Commercial preparations contain a polymerization inhibitor such as hydroquinone, phenothiazine, or hydroquinone ethyl ether.
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The linear PEIs are solids at room temperature while branched PEIs are liquids at all molecular weights. Linear polyethyleneimines are soluble in hot water, at low pH, in methanol, ethanol, or chloroform. They are insoluble in cold water, benzene, ethyl ether, and acetone. They have a melting point of 73–75°C.
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Protection: 2,2-dimethoxypropane and camphorsulfonic acid, and dichloromethane Deprotection: Hydrochloric acid, methanol, water, and ethyl ether Protection of the vicinal diol 2.4 allowed the remaining hydroxyl group in alcohol 2.5 to be selectively oxidized to give aldehyde 2.6. The acetonide was removed much later in the synthesis in preparation for the closure of ring D.
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On its B and C axes it appears yellow, but orange red on the A axis. Ceric nitrate is quite soluble in non polar solvents such as ethyl ether. Ether will extract the cerium nitrate from 5N nitric acid. In nitric acid, nitrato ceric acid (H2[Ce(NO3)6] and H[Ce(NO3)5.H2O]) are present.
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The ammonium sulfide can be formed in situ by the addition of concentrated aqueous ammonium hydroxide followed by saturation of the solution with hydrogen sulfide gas. The intermediate formed by the selective reduction of the 2-nitro substituent, 2-(β-Diethylaminoethylamino)-5-nitroaniline, is then reacted with the hydrochloride salt of the imino ethyl ether of 4-ethoxyphenylacetonitrile (aka: p-ethoxybenzyl cyanide).
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1,2-Benzoquinone, also called ortho-benzoquinone, is an organic compound with formula . It is one of the two isomers of quinone, the other being 1,4-benzoquinone. It is a red volatile solid that is soluble in water and ethyl ether. It is rarely encountered because of its instability, but it is of fundamental interest as the parent compound of many derivatives which are known.
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One chemical that was initially found in the first assessment was Etha (Ethyl, Ether, or Ethyl). Etha is a colorless, liquid that can easily be evaporated. This chemical is exposed by inhaling it or can be absorbed through the skin. With just a little bit of exposure, it can cause narcotic effects such as sleepiness or giddiness, eye irritation, irritation of skin, or respiratory system.
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Brown and Schlesinger successfully synthesized volatile uranium(IV) borohydride, which had a molecular weight of 298. The laboratory was asked to provide a large amount of the product for testing, but diborane was in short supply. They discovered that it could be formed by reacting lithium hydride with boron trifluoride in ethyl ether, allowing them to produce the chemical in larger quantities. This success was met with several new problems.
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Benzocaine is the ethyl ester of p-aminobenzoic acid (PABA). It can be prepared from PABA and ethanol by Fischer esterification or via the reduction of ethyl p-nitrobenzoate. Benzocaine is sparingly soluble in water; it is more soluble in dilute acids and very soluble in ethanol, chloroform, and ethyl ether. The melting point of benzocaine is 88–90 °C, and the boiling point is about 310 °C.
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Fluoroboric acid or tetrafluoroboric acid (archaically, fluoboric acid) is an inorganic compound with the chemical formula [H+][BF4−], where H+ represents the solvated proton. The solvent can be any suitably Lewis basic entity. For instance, in water, it can be represented by (oxonium tetrafluoroborate), although more realistically, several water molecules solvate the proton: [H(H2O)n+][BF4−]. The ethyl ether solvate is also commercially available: [H(Et2O)n+][BF4−], where n is most likely 2.
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The most common replacements of CFCs are mixtures of volatile hydrocarbons, typically propane, n-butane and isobutane. Dimethyl ether (DME) and methyl ethyl ether are also used. All these have the disadvantage of being flammable. Nitrous oxide and carbon dioxide are also used as propellants to deliver foodstuffs (for example, whipped cream and cooking spray). Medicinal aerosols such as asthma inhalers use hydrofluoroalkanes (HFA): either HFA 134a (1,1,1,2,-tetrafluoroethane) or HFA 227 (1,1,1,2,3,3,3-heptafluoropropane) or combinations of the two.
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Relative to the more commonly encountered methylmagnesium bromide and methylmagnesium iodide, methylmagnesium chloride offers the advantages of low equivalent weight and low cost. It is prepared by the reaction of methyl chloride and magnesium in ethyl ether. Structure of CH3MgCl(thf)2, which is representative of the species in donor solvents. As with most Grignard reagents, methylmagnesium chloride is highly solvated by ether solvents via coordination from two oxygen atoms to give a tetrahedrally bonded magnesium center.
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Ethyl cellulose (or ethylcellulose) is a derivative of cellulose in which some of the hydroxyl groups on the repeating glucose units are converted into ethyl ether groups. The number of ethyl groups can vary depending on the manufacturer. It is mainly used as a thin-film coating material for coating paper, vitamin and medical pills, and for thickeners in cosmetics and in industrial processes. Food grade ethyl cellulose is one of few non-toxic films and thickeners which are not water soluble.
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Desflurane (1,2,2,2-tetrafluoroethyl difluoromethyl ether) is a highly fluorinated methyl ethyl ether used for maintenance of general anesthesia. Like halothane, enflurane, and isoflurane, it is a racemic mixture of (R) and (S) optical isomers (enantiomers). Together with sevoflurane, it is gradually replacing isoflurane for human use, except in economically undeveloped areas, where its high cost precludes its use. It has the most rapid onset and offset of the volatile anesthetic drugs used for general anesthesia due to its low solubility in blood.
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At around 1960, Pedersen went back to research in the field of Coordination Chemistry, focusing on the synthesis of multidentate ligands. It was recommended by his colleague Herman Schroeder to work on the coordination chemistry of vanadium before working on the polymerization and oxidative catalytic activity of vanadium. It was while working on this research that Pedersen made his discovery of crown ether. Through studying the bio[2-(o-Hydroxyphenoxy)Ethyl] ether, Pedersen accidentally discovered an unknown substances described as a “goo” while purifying the compound.
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Undiluted Triton X-100 is a clear viscous fluid (less viscous than undiluted glycerol) owing to the hydrogen bonding of its hydrophilic polyethylene oxide parts. Undiluted Triton X-100 has a viscosity of about 270 centipoise at 25 °C which comes down to about 80 centipoise at 50 °C. Triton X-100 is soluble at 25 °C in water, toluene, xylene, trichloroethylene, ethylene glycol, ethyl ether, ethyl alcohol, isopropyl alcohol, and ethylene dichloride. Triton X-100 is insoluble in kerosene, mineral spirits, and naphtha, unless a coupling agent like oleic acid is used.
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It acts as a mild topical anesthetic by its chilling effect when sprayed on skin, such as when removing splinters or incising abscesses in a clinical setting. It was standard equipment in “casualty” wards. It was commonly used to induce general anaesthesia before continuing with di-ethyl ether, which had a very much slower up-take. The heat absorbed by the boiling liquid on tissues produces a deep and rapid chill, but since the boiling point is well above the freezing point of water, it presents no danger of frostbite.
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The imino ether, 2-(4-Ethoxyphenyl)-acetimidic acid ethyl ester hydrochloride, is prepared by dissolving the 4-substituted benzyl cyanide in a mixture of anhydrous ethanol and chloroform and then saturating this solution with dry hydrogen chloride gas. The reaction between the 2-(β-dialkylaminoalkylamine)-5-nitroaniline and the HCl salt of the imino ethyl ether results in the formation of etonitazene. This procedure is particularly useful in the preparation of the 4-, 5-, 6-, and 7-nitrobenzimidazoles. Varying the choice of the substituted phenylacetic acid imino ether affords compounds with a diversity of substituents on the benzene ring at the 2- position.
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Amber preserved in resin block New Jersey amber is grouped by Anderson 1992 as a Class Ib amber, being composed of labdanoid diterpenes, and lacking a presence of succinic acid in the structure. Ragazzi et al in 2003 listed the possible plant families the amber may have been produced by as including Cupressaceae, Araucariaceae, or Hamamelidaceae, but only Cupressaceae was listed by Bisulca et al. The amber is noted as being insoluble in solutions of both ethyl ether and ethanol. Ragazzi et al indicated that New Jersey amber had a distinct amount of sulphur, 0.29%, included in its chemical composition.
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He had heated a mixture of magnesium turnings, isobutyl iodide, and added dry ethyl ether to the mixture and a reaction was observed. The product is known as a Grignard Reagent. Named after him, this organo-magnesium compound (R-MgX) (R = alkyl ; X = Halogen) readily reacts with ketones, aldehydes, and alkenes to produce their respective alcohols in impressive yields. Grignard had discovered the synthetic reaction which now bears his name (the Grignard reaction) in 1900. In 1901, Grignard published his doctoral thesis titled "Thèses sur les combinaisons organomagnesiennes mixtes et leur application à des synthèses d‘acides, d‘alcools et d‘hydrocarbures".
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He spent much of the years 1907–1908 in London, studying anaesthetics under one Dr. Barker, perhaps Arthur Edward James Barker (10 May 1850 – 1916) at the Queen Alexandra Military Hospital, Millbank. Hornabrook, his wife and small family moved to Victoria in early 1909, settling at Lansdowne Road, East St Kilda. He was appointed assistant anaesthetist to the Melbourne General Hospital, where he is credited with popularizing use of the "ethyl chloride-ether sequence" (chloroethane followed by di-ethyl ether) for general anaesthesia. Following the outbreak of the First World War, Hornabrook on 3 August 1914 enlisted with the Permanent Naval Force on battlecruiser HMAS Australia, serving as temporary surgeon under Staff Surgeon Alexander Ruan Caw. HMAS Australia was involved with the AN&MEF;, which captured German New Guinea, then joined the Royal Navy’s Grand Fleet as flagship of the 2nd Battlecruiser Squadron, patrolling the North Sea, but saw little action.
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