3- propyl acetate

Synonyms 1-propyl acetate acetoxypro-pane acetic acid n-propyl ester 

Flammable liquid flash point (closed cup) 14°C (58°F) vapor pressure 25 torr at 20°C (68°F) vapor density 3.5 (air = 1) autoignition temperature 450°C (842°F). The vapor forms explosive mixtures with air in the range 

0% by volume in air. It reacts vigorously with strong oxidizers, acids, and alkalies. Reaction with potassium terr-butoxide may cause ignition. 

Colorless liquid with a mild odor of pears density 0.887 at 20 C (68 F) boils at 101.6°C (214°F) solidifies at -92.5 C (-134°F) slightly soluble in water [2% at 20°C (68°F)], miscible with most organic solvents. 

The acute toxicity of -propyl acetate is low in test animals. The toxicity, however, is slightly greater than ethyl acetate and isopropyl acetate. Exposure to its vapors produces irritation of the eyes, nose, and 

The slow combustion of this compound [95] also possesses a region of negative temperature coefficient between 320 and 360 °C and it very readily gives rise to cool flames [45]. The major products are aldehydes and acids, propionic acid and propionaldehyde predominating at high temperatures. At low temperatures considerable amounts of hydrogen peroxide are formed. 

This ester oxidizes very easily [95], reaction being perceptible even below 140 °C. Above about 300 °C, pyrolysis to propene and acetic acid also takes place. It too, gives cool flames [47]. Fish and Waris [95] detected only acetone, organic peroxides and peroxyacids in the products. Between 280 and 360 °C, Hoare and Kamil [97] found a wider range of products including hydrogen peroxide, formaldehyde, methanol, isopropanol, acetic acid and at 320 °C and below, acetaldehyde. Propene and acetone were found at 360 °C but organic peroxides and peroxyacids were always absent. 

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Methyl formate. Ethyl formate Methyl acetate Iso-propyl formate Ethyl acetate Methyl propionate "-Propyl formate Iso-propyl acetate Methyl iso-butyrate Iso-butyl formate. Ethyl propionate M-Propyl acetate. Methyl butyrate. ... 

Ethyl acetate. Use 58 g. (73-5 ml.) of absolute ethyl alcohol, 225 g. of glacial acetic acid and 3 g. of concentrated sulphuric acid. Reflux for 6-12 hours. Work up as for n-propyl acetate. B.p. 76- 77°. Yield 32 g. Much ethyl acetate is lost in the washing process. A better yield may be obtained, and most of the excess of acetic acid may be recovered, by distilhng the reaction mixture through an efficient fractionating column and proceeding as for methyl acetate. 

Ketones and esters are required for C-type inks. Types of esters are ethyl acetate, isopropyl acetate, normal propyl acetate, and butyl acetate. From the ketone class, acetone or methyl ethyl ketone (MEK) can be used. The usual solvent for D-type inks are mixtures of an alcohol, such as ethyl alcohol or isopropyl alcohol, with either aUphatic or aromatic hydrocarbons. Commonly used mixtures are 50/50 blends by volume of alcohol and aUphatic hydrocarbon. 

The alcohols, proprietary denatured ethyl alcohol and isopropyl alcohol, are commonly used for E-type inks. Many E-type inks benefit from the addition of small amounts of ethyl acetate, MEK, or normal propyl acetate to the solvent blends. Aromatic hydrocarbon solvents are used for M-type inks. Polystyrene resins are used to reduce the cost of top lacquers. T-type inks are also reduced with aromatic hydrocarbons. Acryflc resins are used to achieve specific properties for V-type inks. Vehicles containing vinyl chloride and vinyl acetate copolymer resins make up the vinyl ink category. Ketones are commonly used solvents for these inks. 

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