Amyl ketone

This ketone is a colorless, stable liquid, miscible with mast lacquer solvents ond only very slightly soluble in water. It is used os a high-boiling solvent for nitrocellulose and is particularly applicable in vinyl resin finishes, where its slow rate of evaporation prevents quick drying, improves the flaw and gives blush resistance also used with some effect in insecticidal preparations. 

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Satisfactory results may also be obtained with redistilled methyl n-amyl ketone—an inexpraaive eommersial produot. 

Methyl n-amyl ketone Methyl n-amyl carbinol (2-heptanol)... 

Place a mixture of 114 g. (140 ml.) of methyl -amyl ketone (2-hepta-none) (1), 300 ml. of rectified spirit (95 per cent, ethyl alcohol) and 100 ml. of water (2) in a 1500 ml. three-necked fiask or in a 1500 ml. round-bottomed fiask provided with a two-way addition tube (Fig. 11,13, 9). Attach an efficient double surface condenser to the fiask and close the... 

For the preparation of methyl n butyl ketone and methyl n amyl ketone by another method, see Section 111,152. 

Ketones are an important class of industrial chemicals that have found widespread use as solvents and chemical intermediates. Acetone (qv) is the simplest and most important ketone and finds ubiquitous use as a solvent. Higher members of the aUphatic methyl ketone series (eg, methyl ethyl ketone, methyl isobutyl ketone, and methyl amyl ketone) are also industrially significant solvents. Cyclohexanone is the most important cycHc ketone and is primarily used in the manufacture of y-caprolactam for nylon-6 (see Cyclohexanoland cyclohexanone). Other ketones find appHcation in fields as diverse as fragrance formulation and metals extraction. Although the industrially important ketones are reviewed herein, the laboratory preparation of ketones is covered elsewhere (1). 

Methyl Amyl Ketone. Methyl amyl ketone [110-43-0] (MAK) (2-heptanone) is a colorless Hquid with a faint fmity (banana) odor. It is found in oil of cloves and cinnamon-bark oil, and is manufactured by the condensation of acetone and butyraldehyde (158). Other preparations are known (159-162). 

The physical properties of finish removers vary considerably due to the diverse uses and requirements of the removers. Finish removers can be grouped by the principal ingredient of the formula, method of appHcation, method of removal, chemical base, viscosity, or hazardous classification. Except for method of apphcation, a paint remover formulation usually has one aspect of each group, by which it can be used for one or more appHcations. A Hst of the most common organic solvents used in finish removers has been compiled (3). Many are mentioned throughout this article others include ethyl lactate [97-64-3] propylene carbonate [108-32-7] furfural alcohol [98-01-1/, dimethyl formamide [68-12-2] tetrahydrofuran [109-99-9] methyl amyl ketone [110-43-0] dipropylene glycol methyl ether [34590-94-8] and Exxate 600, a trade name of Exxon Chemicals. 

The remaining (8%) //-butyraldehyde production of the United States goes into (in decreasing order) poly(vinyl butyral), 2-ethyIhexanal, trimethylolpropane, methyl amyl ketone, and butyric acid. 

Methyl amyl ketone, derived from the crossed aldol condensation of -butyraldehyde and acetone, is used predominandy as a high soHds coatings solvent. It is also employed as a replacement for the very toxic 2-ethoxyethyl acetate [111 -15-9J. 

Methylal, see Dimethoxymethane Methyl alcohol Methyl amyl alcohol Methyl-n-amyl ketone Methyl bromide 2-Methyl-l -butene... 

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