Acetyl Peroxide Solution

Acetylene Dichloride Acetylene Tetrachloride Acetylenogen Acetyl Hydroperoxide Acetyl Peroxide Solution Acid Ammonium Carbonate Acid Ammonium Fluoride Acid Calcium Phosphate... 

ACETYL PEROXIDE SOLUTION Diacetyl Peroxide Solution Organic Peroxide 1 2 4 ... 

Dichloroethylene Tetrachloroethane Calcium Carbide Peracetic Acid Acetyl Peroxide Solution Ammonium Bicarbonate Ammonium Bifluoride Calcium Phosphate... 

The thermal decomposition of diacyl peroxides has been the most frequently employed process for the generation of alkyl radicals. The rate and products of the unimolecular decomposition of acetyl peroxide have been the subject of many studies. Acetyl peroxide decomposes at a convenient rate at 70-80°C both in the solution and in the gas... 

Dining an attempt to prepare an anhydrous 25% solution of peroxyacetic acid in acetic acid by dehydrating a water-containing solution with acetic anhydride, a violent explosion occurred. Mistakes in the operational procedure allowed heated evaporation to begin before the anhydride had been hydrolysed. Acetyl peroxide could have been formed from the anhydride and peroxyacid, and the latter may have detonated and/or catalysed violent hydrolysis of the anhydride [1], A technique for preparing the anhydrous acid in dichloromethane without acetyl peroxide formation has been described [2],... 

Acetyl peroxide may readily be prepared and used in ethereal solution. It is essential to prevent separation of the crystalline peroxide even in traces, since, when dry, it is shock-sensitive and a high explosion risk [1], Crystalline material, separated and dried deliberately, detonated violently [2], The commercial material, supplied as a 30% solution in dimethyl phthalate, is free of the tendency to crystallise and is relatively safe. It is, however, a powerful oxidant [1]. Precautions necessary for the preparation and thermolysis of the peroxide have been detailed [3,4],... 

Thus the autoxidation of the aldehydes leads finally to acids. That a per-acid is first formed can be very easily shown in the case of acetaldehyde by the immediate liberation of iodine from potassium iodide solution which is caused hy this strong oxidising agent. In the case of benzaldehyde, which combines exceptionally rapidly with oxygen, it has been possible to trap the per-acid with acetic anhydride as benzoyl-acetyl peroxide (Nef) ... 

Acetyl peroxide was recrystallized three times at —78°C. to give a stock solution of peroxide in isooctane, whose concentration was determined either by infrared analysis using the 1790 cm."1 peroxide band or by iodometric titration (13). 

Acetyl peroxide (solid) explodes on shock. It should be prepared and used without interruption and should be handled by remote control (Refs 54 71). The commercially available 30% solution in dimethyl phthalate will not give crystalline acetyl peroxide under ordinary-circumstances. The solution has a flash point of 45°C. Heating it above 50°C causes orderly, but fairly rapid decomposition (Ref 62)... 

SYNS ACETYL PEROXIDE, not >25% in solution (UN 2084) pOT) ACETYL PEROXIDE, soUd, or >25% in solution pOT) DIACETONE PEROXIDES, solid, or >25% in solution (DOT) DIACETYL PEROXIDE (MAK)... 

Storage and Handling Must be kept below 27° and not warmed over 30°. Do not add to hot materials. Do not add accelerator to this material. Store in original container with vented cap. Avoid bodily contact. This material is nearly always stored and handled as a 25% solution in an inert solvent. See also ACETYL PEROXIDE 25% solution (in dimethyl phthalate) and PEROXIDES, ORGANIC. 

In non-aqueous solutions the Kolbe electrosynthesis takes place with high eflSciency at platinized platinum and gold, as well as at smooth platinum, anodes increase of temperature and the presence of catalysts for hydrogen peroxide decomposition, both of which have a harmful effect in aqueous solution, have relatively little influence. The mechanism of the reaction is apparently quite different in non-aqueous solutions and aqueous solutions in the former no hydroxyl ions are present, and so neither hydroxyl radicals nor hydrogen peroxide can be formed. It is probable, therefore, that direct discharge of acetate ions occurs at a potential which is almost independent of the nature of the electrode material in a given solvent. The resulting radicals probably combine in pairs, as in aqueous solution, to form acetyl peroxide, which subsequently decomposes as already described. ... 

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