Ethanoic anhydrate

Synonyms Acetanhydride Acetyl acetate Acetic acid anhydride Acetic oxide Acetyl anhydride Acetyl ether Acetyl oxide BRN 0385737 Caswell No. 003A CCRIS 688 EINECS 203-564-8 EPA pesticide chemical code 044007 Ethanoic anhydrate Ethanoic anhydride UN 1715. 

Synonyms Acetic oxide acetyl oxide ethanoic anhydrate acetic acid anhydride... 

SYNS ACETANHYDRIDE ACETIC ACID, ANHYDRIDE (9CI) ACETIC OXIDE ACETYL ANHYDRIDE ACETYL ETHER ACETYL OXIDE ANHYDRIDE ACETIQUE (FRENCH) ANHY-DRID KYSELINY OCTOVE ANIDRIDE ACETICA (ITALIAN) AZIJNZUURANHYDRIDE (DUTCH) ESSIGSAEURE-ANHYDRID (GERMAN) ETHANOIC ANHYDRATE OCTOWY BEZWODNIK (POLISH)... 

ETHANOIC ANHYDRATE (108-24-7) C4H5O3 Forms explosive mixture with air... 

ETHANOIC ANHYDRATE (108-24-7) Forms explosive mixture with air (flash point 126°F/52°C). Reacts with water, forming acetic acid and liberating a large amount of heat. Reacts with alcohol, forming ethyl acetate. Reacts violently with alkaline materials (e.g., potassium hydroxide or sodium hydroxide), barium peroxide, boric acid, chromic trioxide,... 

Ethanoic acid, ethenyl ester. See Vinyl acetate Ethanoic anhydrate. See Acetic anhydride Ethanol. See Alcohol N-Ethanolacetamide. See Acetamide MEA Ethanolamide. See Acetamide Ethanolamine... 

CH2C1 CH2C1. Colourless liquid with an odour like that of chloroform b.p. 84 C. It is an excellent solvent for fats and waxes. Was first known as oil of Dutch chemists . Manufactured by the vapour- or liquid-phase reaction of ethene and chlorine in the presence of a catalyst. It reacts with anhydrous ethano-ales to give ethylene glycol diethanoate and with ammonia to give elhylenediamine, these reactions being employed for the manufacture of these chemicals. It burns only with difficulty and is not decomposed by boiling water. 

The higher iodides, however, tend to be unstable and decomposition occurs to the lower iodide (PI5 -> PI3). Anhydrous chlorides and bromides of some metals may also be prepared by the action of acetyl (ethanoyl) halide on the hydrated ethanoate (acetate) in benzene, for example cobalt(II) and nickel(II) chlorides ... 

Of this product, 4.5 g in 30 cc of dry isopropyl alcohol are refluxed for 16 hours with 2.5 g of (3-chloroethyl dimethyl amine. The solution is cooled and filtered clear from the solid by-product. The solvent is removed under reduced pressure on the steam bath and the residue is washed with anhydrous ether. It is dissolved in ethyl acetate from which it crystallizes. It is the hydrochloride of (3-(dimethylamino)ethyl ester of 2-phenyl-2-( 1-hy-droxycyclopentyl) ethanoic acid, melting at 134° to 136°C. 

Whilst some organic compounds can be investigated in aqueous solution, it is frequently necessary to add an organic solvent to improve the solubility suitable water-miscible solvents include ethanol, methanol, ethane-1,2-diol, dioxan, acetonitrile and acetic (ethanoic) acid. In some cases a purely organic solvent must be used and anhydrous materials such as acetic acid, formamide and diethylamine have been employed suitable supporting electrolytes in these solvents include lithium perchlorate and tetra-alkylammonium salts R4NX (R = ethyl or butyl X = iodide or perchlorate). 

Amresco acryl-40, see Acrylamide AMS, see a-Methylstyrene n-Amyl acetate, see Amyl acetate Amyl acetic ester, see Amyl acetate Amyl acetic ether, see Amyl acetate Amylene, see 1-Pentene a-n-Amylene, see 1-Pentene p-n-Amylene, see cis-2-Pentene cis-p-Amylene, see cis-2-Pentene frans-p-Amylene, see trans-2-Venlene sec-Amyl ethanoate, see Amyl acetate Amyl ethyl ketone, see 5-Methyl-3-heptanone Amyl hydride, see Pentane Amyl methyl ketone, see 2-Heptanone n-Amyl methyl ketone, see 2-Heptanone AN, see Acrylonitrile Anaesthetic ether, see Ethyl ether Anamenth, see Trichloroethylene Anduron, see Diuron Anesthenyl, see Methylal Anesthesia ether, see Ethyl ether Anesthetic ether, see Ethyl ether Anhydrous ammonia, see Ammonia Aniline oil, see Aniline Anilinobenzene, see 4-Aminobiphenyl Anilinomethane, see Methylaniline 2-Anidine, see o-Anisidine 4-Anisidine, see p-Anisidine 2-Anisylamine, see o-Anisidine... 

Phosgene is an oxidising agent, and iodometric techniques, based upon equation (3.2), have been employed for its determination [425,1148,1255,1357,1604]. The reaction must be carried out under anhydrous conditions (commonly in propanone or methyl ethanoate [1604]), and the iodine determined by conventionai procedures, such as by titration with [S fi 3] Although the usual starch indicator cannot be used in propanone solution, the colour of the generated dliodlne affords a reasonably sharp end-point [1560]. In addition, indications of very smali quantities of phosgene are indicated by the reddish-yellow colour of the liberated diiodine, so that the method can be applied for the trace determination of the gas [1560],... 

To a three-necked round-bottomed flask (1 L) equipped with a reflux condenser, thermometer, a dropping funnel (250 mL), and a magnetic stirrer bar, add dimethylformamide (300 mL) and anhydrous potassium carbonate (69.1 g, 0.5 mol). Using a powder funnel, add methyl p-hydroxybenzoate (60 g, 0.40 mol) together with the potassium iodide. Heat the solution to 90°C and add 6-chlorohexyl ethanoate (97.4 g, 0.54 mol) drop-wise over several hours. Stir the solution for a total of 24 h whereupon TLC (silica gel, 3 2 petroleum ether ethyl acetate) should indicate the complete conversion of starting material. 

C it loses ethanoic acid and water, forming a basic lead(II) ethanoate. Its solubility in water is 50 g per 100 g of water at 25°C. Lead(II) ethanoate can be obtained as an anhydrous salt. Its chief asset is that it is one of the few common lead(II) salts that are soluble in water. 

A colourless crystalline compound, CHaCOONa, which is known as the anhydrous salt (r.d. 1.52 m.p. 324°C) or the trihydrate (r.d. 1.45 loses water at 58°C). Both forms are soluble in water and in ethoxyethane, and slightly soluble in ethanol. The compound maybe prepared by the reaction of ethanoic acid (acetic acid) with sodium carbonate or with sodium hydroxide. Because it is a salt of a strong base... 

TCE/anhydrous ethanol TCE/95% ethano 2734 TCE/MEK/ethanol TCE/acetone toluene/95% ethanol MEK/95% ethanol/toluene MEK/methanol/butanoP ... 

The physical and structural consequences of adsorption of water by an ionic liquid is well exenplified by Rogers et al., who report that the anhydrous ionic liquid procainium ethanoate [4-H2NCeH4C(0)0CH2CH2NEt2H][02CMe] (Tg -25°C) forms a crystalline dihydrate (mpt. 52°C) on exposure to moisture. 

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