Ether sulfurous

Sulfur, or Sulfur compounds See Sulfonyl chloride Diethyl ether Sulfur Diethyl ether... 

Synonyms Aether AI3-24233 Anaesthetic ether Anesthesia ether Anesthetic ether Diethyl ether Diethyl oxide EINECS 200-467-2 Ether Ethoxyethane Ethyl oxide NSC 100036 l,l -0 Qr-bis(ethane) RCRA waste number U117 Solvent ether Sulfuric ether UN 1155. 

Synonyms Diethyl ether ethoxyethane ethyl oxide ether anesthesia ether sulfuric ether... 

A -Unsubstituted 1,2,4-diazaphospholes (4) undergo A -alkylation by reaction with alkyl vinyl ether, sulfur ylides, and diazo compounds <95HAC403>. They react with acyl chlorides in a 2 1 molar ratio to give a mixture of the A -acylated diazaphosphole and the diazaphosphole hydrochloride. Preparative A -acyclation is achieved in presence of a tertiary amine. Sulfonyl chlorides and phosphorus trichloride also give A -substitution reactions (Scheme 2) <87TH 422-01 >. 

Benzene, Arsenic trichloride, Aluminum chloride. Hexanes Acetic anhydride. Nitric acid, Hexamine, Acetic acid, Methylene chloride. Sodium bicarbonate, Magnesium sulfate, Dioxane, Hydrogen chloride, Acetone, Sodium azide m-phenylenediamine, Methanol, Sodium carbonate, Ethyl chloromate, Ethylene glycol dimethyl ether, Sulfuric acid, Nitric acid... 

The concentrations of O17 used in the work of Jackson, Lemons, and Taube proved too low for very accurate determination of hydration numbers. Water samples more highly enriched in O17 should provide the basis for important studies of solvation phenomena in solution. This approach could be extended to other solvent systems such as liquid ammonia, amines, and acetonitrile (N14 or N16 resonances), ethers, sulfur dioxide, and di-methylsulfoxide (O17), and BrF3 (F19). 

The chemistry of saturated heterocyclic compounds is characteristic of their functional group. For example, nitrogen compounds are amines, oxygen compounds arc ethers, sulfur compounds are sulfides. Differences in chemical reactivity are observed for three-membered rings, e.g., epoxides, whose enhanced reactivity is driven by the relief of their severe ring strain. This chapter discusses heterocycles that are aromatic and have unique chemical properties. 

Water (28 g) and polyoxyethylene phenyl ether sulfuric acid ester emulsifier (0.08 g) were added to a 300-ml flask and heated to 85°C while stirring. This solution was then treated with a mixture of the step 4 product (6.3 g), methyl methacrylate (41.6 g), styrene (14 g), butyl acrylate (23.5 g), 2-ethylhexyl acrylate (14.6 g), water (51.6 g), polyoxyethylene phenyl ether sulfuric acid ester emulsifier (6.6 g), and 0.3 g of sodium persulfate over 4 hours. Thereafter, a mixture of water (5.2 g) and ammonium persulfate (0.1 g) were added over 30 minutes and the mixture stirred for an additional 2 hours. It was then cooled to ambient temperature and a white resin isolated, which consisted of 52% solids with a polymerization conversion of 99%. 

Sodium Alkylbenzenesulfolat< Sulfur Dioxide Hydrogen Sulfide Sulfuric Acid Sulfuric Acid, Spent Ethyl Ether Sulfur (Liquid)... 

The protein used was crystalline bovine serum albumin (BSA) obtained from Armour Laboratories. Sodium dodecyl sulfate (SDS) was synthesized from pure dodecyl alcohol and chlorosulfonic acid, recrystallized, and washed with ethyl ether. Sulfuric acid was reagent grade purchased from the J. T. Baker Chemical Co. and used directly. Reagent grade potassium hydroxide purchased from the Mallinkrodt Co. was purified by foaming a concentrated solution, removing the foam, and using the solution directly. 

See Sulfinyl chloride tert-Butyl methyl ether Sulfuric acid... 

Sulfur dioxide forms a colorless gas with a strong suffocating and irritating odor. The gas has a melting point of -72 Celsius, and a boiling point of-10 Celsius. The gas is easily condensed into a colorless liquid. The gas is soluble in water, alcohol, chloroform, and ether. Sulfur dioxide is available in gas cylinders, but it can be prepared in the lab by dripping hydrochloric acid onto excess sodium bisulfite. 

Nearly 1000 compounds have so far been identified in the volatile constituents of meat from beef, chicken, mutton and pork (6). The largest number of volatiles has been determined in beef and these were representative of most classes of organic compounds. Hydrocarbons, alcohols, aldehydes, ketones, carboxylic acids, esters, lactones, ethers, sulfur and halogenated compounds as well as different classes of heterocyclic substances (Figure 1) namely furans, pyrldlnes, pyrazines, pyrroles, oxazol(in)es, thiazol(in)es, thiophenes were present in cooked meat flavor volatiles as shown in Table I. Many of these compounds are unimportant to the flavor of meat and some may have been artifacts (16). 

The two most important thiacrown ethers are [14]aneS4 (12) and [12]aneS4 (13) (the thia equivalents of the aza-based crown ethers [14]aneN4 and [12]aneN4, respectively). Unlike oxygen-based crown ethers, sulfur-based crown ethers, thiacrown ethers, have a demonstrated ability to complex transition metals as opposed to alkali and alkaline earth metals. Nonetheless, interesting thiacrown ether complexes have been isolated with organoaluminum moieties. 

Properties Greenish crystals. Mp 145C. Soluble in alcohol, benzene, ether, sulfuric acid. 

Ethyl oxid — Ethylio ether —Ether—Sulfuric ether —. ffither... 

Synonyms Anesthetic ether Diethyl ether Diethyl oxide Ether Ethoxyethane Ethyl oxide 1,1 -Oxybisethane Oxybis-1,1-ethane Solvent ether Sulfuric ether Classification Sat. aliphatic ether Empirical C4H10O Formula CH3CH2OCH2CH3... 

Definition Magnesium sait of PCA Empirical C5H7NO3 ViMg Uses Humectant in cosmetics Magnesium PEG-3 cocamide sulfate Synonyms PEG-3 cocamide ether sulfuric acid, magnesium sait... 

Acid consumption is also highly dependent on certain impurities in the feedstocks to the alkylation reactor. Some more vmdesired impurities include conjugated diolefins, acetylenic hydrocarbons, cyclopentene (found in C5 olefins), methyl f-butyl ethers, sulfur-containing hydrocarbons, and water (in either sulfuric acid as discussed earlier or in hydrocarbon feedstocks). Increased amounts of several of these impurities have resulted in the last 20-30 years because of changes in the operation of the catal3d ic cracking vmits in refineries. There are methods to reduce the impurities to a considerable extent some may be cost-effective. 

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