Acetone ethanol

Allylestrenol. Allylestrenol (37), which has been used to treat cases of habitual abortion (55), can be recrystaUized from ether/petroleum ether (56). It is soluble in acetone, ethanol, ether, and chloroform and practically insoluble in water (57). The uv and ir spectra have been reported (58). AHylestrenol is sensitive to oxidising agents (57). 

Pure, freshly distilled aniline is a colorless, oily Hquid that darkens on exposure to light and air. It has a characteristic sweet, aminelike aromatic odor. Aniline is miscible with acetone, ethanol, diethyl ether, and benzene, and is soluble in most organic solvents. Its soIubiHty characteristics in water are as follows ... 

Since the thermal dehydrocondensation proceeds by a free-radical mechanism (37), various radical-forrning promoters like acetone, ethanol, or methanol have been found useful in improving conversion of ben2ene to condensed polyphenyls. In the commercial dehydrocondensation process, ben2ene and some biphenyl are separated by distillation and recycled back to the dehydrocondensation step. Pure biphenyl is then collected leaving a polyphenyl residue consisting of approximately 4% o-terphenyl, 44% y -terphenyl, 25% -terphenyl, 1.5% triphenylene, and 22—27% higher polyphenyl and tars. Distillation of this residue at reduced pressure affords the mixed terphenyl isomers accompanied by a portion of the quaterphenyls present. 

Pure (9-terphenyl can be obtained by fractional distillation. To obtain high purity m- or -terphenyl, the appropriate distillation fraction has to be further purified by recrysta11i2ing, 2one refining, or other refining techniques. Currently, litde demand exists for pure isomers, and only a mixture is routinely produced. Small amounts of acetone, ethanol, or methanol are used to promote dehydrocondensation, and as a result, minor amounts of methyl- or methylene-substituted polyphenyls accompany the biphenyl and terphenyls produced. For most purposes, the level of such products (<1%) is so small that their presence can be ignored. For appHcations requiring removal of these alkyl-polyphenyl impurities, an efficient process for their oxidative destmction has been described (38). 

Water with acetic acid, acetone, ethanol, methanol, or pyridine. 

To a solution of 11.8 g of 2-A-pyrrolidylbicyclo[3.3.1]nonan-9-one in 25 ml of dry ether is added 25 g of methyl iodide in one portion. The solution is allowed to stand at room temperature for 2 hours, then filtered to remove the product. To the filtrate is added 5 g of methyl iodide and after 5 hours at room temperature, solid is again collected. A third crop is similarly obtained. The combined solids (approx. 17 g) are recrystallized from acetone-ethanol to give about 16 g of the methiodide, mp 220-222°. 

IB) 21-Chloro-90i-fluoro- -pregnene-11 160l,170i-triol-3,2Q-d ane 16,17-acetonlde A solution of 200 mg of the acetonide 21-mesylate from part (A) and 900 mg of lithium chloride in 25 ml of dimethylformamide is kept at 100°C for 24 hours. The mixture is poured on ice, extracted with chloroform and the chloroform extract washed with water and dried over sodium sulfate. Evaporation of the solvent in vacuo furnishes the crystalline chloride, which after recrystallization from acetone-ethanol has a melting point about 276°C to 277°C. 

The free base can be salified so as to render it hydrosoluble. For this purpose, for example, it is dissolved in acetone and precipitated as an oxalate by the addition of a solution of oxalic acid in ethanol. Recrystallizes with ethanol. Melting point (oxalate) 159°C to 162°C. Alternatively it can be dissolved in acetone and precipitated with an acetone solution of HCI. Recrystallizes with acetone-ethanol. Melting point (chlorhydrated) 181°Cto 183°C. 

Acetaldehyde, methanol, acetone, ethanol, Isopropyl alcohol, n-propyl alcohol... 

Many solvents such as methanol, acetone, ethanol, and water are used for anthocyanin extraction due to their polar character since most anthocyanins occur naturally as glycosides. Anthocyanin glycosides have higher solubility in water than the corresponding aglycons. In addition, in most fruits and vegetables, anthocyanin pigments are located in cells near the surface. " ... 

Solubility Soluble in acetone, ethanol, and carbon tetrachloride insoluble in water. 

Acetone, ethanol or ether ignite on contact with the chloride, and turpentine behaves similarly. 

Soluble fuels (acetone, ethanol, glycerol) will detonate on admixture with peroxide of over 30% concentration, the violence increasing with concentration. 

The explosion limits have been determined for liquid systems containing hydrogen peroxide, water and acetaldehyde, acetic acid, acetone, ethanol, formaldehyde, formic acid, methanol, 2-propanol or propionaldehyde, under various types of initiation [1], In general, explosive behaviour is noted where the ratio of hydrogen peroxide to water is >1, and if the overall fuel-peroxide composition is stoicheiometric, the explosive power and sensitivity may be equivalent to those of glyceryl nitrate [2],... 

A variety of metals have now been investigated in our laboratory including Fe, Co, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, In, Ge, Sn, and Pb. Solvents employed have been acetone, ethanol, THF, diethylether, dimethylsulfoxide, dimethylformamide, pyridine, triethylamine, ispropanol, isopropanol-acetone, toluene, pentane, and water. Acetone-Au will be discussed in detail herein, along with Ag. 

As a gold standard, fresh tissue prepared by snap-frozen method, cut by cryostat, and fixed in acetone, ethanol, or other non-cross-linking fixatives, has been generally accepted as reliable. 

Use of cosolvent. Various cosolvents, such as acetone, ethanol, methanol, hexane, dichloromethane, and water, have been used for the removal of carotenoids using SC-CO2 extraction (Ollanketo and others 2001). All these cosolvents except water (only 2% of recovery) increased the carotenoid recovery. The use of vegetable oils such as hazelnut and canola oil as a cosolvent for the recovery of carotenoids from carrots and tomatoes have been reported (Sun and Temelli, 2006 Shi, 2001 Vasapollo and others 2004). For the extraction without cosolvent addition, the lycopene yield was below 10% for 2- to 5-hr extraction time, whereas in the presence of hazelnut oil, the lycopene yield increased to about 20% and 30% in 5 and 8 hr, respectively. The advantages of using vegetable oils as cosolvents are the higher extraction yield the elimination of organic solvent addition, which needs to be removed later and the enrichment of the oil with carotenoids that can be potentially used in a variety of product applications. 

Rapid-acting dermally hazardous cytotoxin that inhibits protein synthesis and affects clotting factors in the blood. It is capable of producing incapacitating or lethal effects. T2 is obtained from various molds and fungi (Fusarium sp.). It is a colorless crystalline solid of white powder that melts at 304°F. Impure samples may be a colorless to slightly yellow oil. It is slightly soluble in water, but soluble in ethyl acetate, acetone, ethanol, chloroform, methylene chloride, diethyl ether, and dimethyl sulfoxide (DMSO). It is heat stable and can be stored at room temperature for years. 

The following reactions have been employed in the syntheses of tri-and tetrametaphosphimates. Since most often the compounds are very soluble in water, single crystals were grown by evaporation of the solvent or by diffusion controlled addition of an organic solvent such as acetone, ethanol, or methanol. 

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