Acetaldehyde sentence example

acetaldehyde
  • Grignard (Comptes Rendus, 1900 et seq.) showed that aldehydes combine with magnesium alkyl iodides (in absolute ether solution) to form addition products, which are decomposed by water with the formation of secondary alcohols, thus from acetaldehyde and magnesium methyl iodide, isopropyl alcohol is obtained.
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  • (For trichloracetaldehyde see Chloral.) By the action of acetaldehyde on alcohol at Ioo° C., acetal, CH 3.
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  • Thioaldehydes are also known, and are obtained by leading sulphuretted hydrogen into an aqueous solution of acetaldehyde.
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  • It is prepared by oxidizing cinnamyl alcohol, or by the action of sodium ethylate on a mixture of benzaldehyde and acetaldehyde.
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  • Scholtz (Ber., 1894, 2 7, p. 2 95 8) from piperonyl acrolein (the condensation product of piperonal and acetaldehyde) and acetic acid.
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  • Traces of ethyl alcohol in solutions are detected and estimated by oxidation to acetaldehyde, or by conversion into iodoform by warming with iodine and potassium hydroxide.
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  • Oxidation of ethyl alcohol gives acetaldehyde and acetic acid.
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  • Chlorine oxidizes it to acetaldehyde, and under certain conditions chloral is formed.
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  • It acts as an oxidizing agent, liberating iodine from potassium iodide, converting alcohol into acetaldehyde, &c.
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  • It is readily soluble in water, melts at 193° C., and is decomposed at a higher temperature into chromium sesquioxide and oxygen; it is a very powerful oxidizing agent, acting violently on alcohol, converting it into acetaldehyde, and in glacial acetic acid solution converting naphthalene and anthracene into the corresponding quinones.
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  • Potash fusion converts it into acetic acid; nitric acid oxidizes it to acetic and oxalic acids; chromic acid mixture to acetaldehyde and acetic acid, and potassium permanganate to a0-dioxybutyric acid.
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  • This compound condenses in alkaline solution with compounds containing the grouping - CH 2 - CO - to form quinoline or its derivatives; thus, with acetaldehyde it forms quinoline, and with acetone, a-methyl quinoline.
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  • In the preparation of chloroform by the action of bleaching powder on ethyl alcohol it is probable that the alcohol is ..rst oxidized to acetaldehyde, which is subsequently chlorinated and then decomposed.
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  • The substance investigated was acetaldehyde, C 2 H 4 O, in its relation to paraldehyde, a polymeric modification.
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  • Wurtz); by boiling a-chlorpropionic acid with caustic alkalis, or with silver oxide and water; by the reduction of pyruvic acid with sodium amalgam; or from acetaldehyde by the cyanhydrin reaction (J.
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  • When heated with dilute sulphuric acid to 130° C., under pressure, it is resolved into formic acid and acetaldehyde.
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  • Chromic acid oxidizes it to acetic acid and carbon dioxide; potassium permanganate oxidizes it to pyruvic acid; nitric acid to oxalic acid, and a mixture of manganese dioxide and sulphuric acid to acetaldehyde and carbon dioxide.
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  • The cause of a hangover Consuming large volumes of alcohol causes by-products in your body, in particular a nasty chemical called acetaldehyde.
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  • Acetaldehyde still needs to be broken down into sugars and whatnot by the enzyme acetaldehyde still needs to be broken down into sugars and whatnot by the enzyme acetaldehyde dehydrogenase.
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  • It was further commented that the DETR paper indicated that other simple aldehydes were generally present at lower concentrations than formaldehyde and acetaldehyde.
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  • When heated with hydrochloric acid to Ioo C. it yields carbon dioxide and pyrotartaric acid, C 5 H 8 0 4, and when warmed with dilute sulphuric acid to 150° C. it gives carbon dioxide and acetaldehyde.
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  • (For trichloracetaldehyde see Chloral.) By the action of acetaldehyde on alcohol at Ioo° C., acetal, CH 3.
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  • It is readily soluble in water, melts at 193° C., and is decomposed at a higher temperature into chromium sesquioxide and oxygen; it is a very powerful oxidizing agent, acting violently on alcohol, converting it into acetaldehyde, and in glacial acetic acid solution converting naphthalene and anthracene into the corresponding quinones.
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  • When heated with dilute sulphuric acid to 130° C., under pressure, it is resolved into formic acid and acetaldehyde.
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  • Hydroxylic oxygen is obtained by subtracting the molecular refractions of acetic acid and acetaldehyde.
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