Follow us
Home > Knowledge > Content
N-propyl acetate use and production method
May 02, 2018


Application
Used as a food spice
GB 2760-1996 provides for the use of edible spices. It is mainly used for the preparation of pear, honey, banana, apple, alcoholic beverages and gooseberry flavors, and also used as a fruit-type perfume solvent.
The product is a mild quick-drying agent for use in flexo printing inks and gravure printing inks, especially for printing olefins and polyamide films. Also used as a solvent for nitrocellulose, chlorinated rubber and heat-reactive phenolic plastics. Propyl acetate has a slight fruit aroma. Pear-like aroma after dilution. Natural products are found in bananas, tomatoes, and raspberries. China's GB2760-86 provides for the use of edible spices. Mainly used for the preparation of pear and gooseberry flavors, also used as a fruit-type perfume solvent.
N-propyl acetate has excellent dissolving power for various synthetic resins and is an effective solvent for many synthetic resins such as ethyl cellulose, nitrocellulose, styrene and methacrylate resins. N-propyl acetate is commonly used in organic synthesis and is used as a solvent for coatings, printing inks, etc. N-propyl acetate is also commonly used in industry as a dehydrating agent.
It is used as a good solvent for paints, inks, nitro spray paints, varnishes, and various resins. It is also used in the flavor and fragrance industry.
production method
It is derived from the esterification of acetic acid and propanol. In a glass-lined reaction kettle, propanol, acetic acid, and sulfuric acid were added and the mixture was heated to reflux for 10 h. After cooling, it was neutralized to pH=7-8 with sodium methoxide. After drying with calcium chloride, atmospheric pressure fractionation was performed to collect 105-115° C. fractions. Is the finished product.
After esterification and distillation of n-propanol and acetic anhydride in the presence of sulfuric acid, they are washed with saturated saline solution and sodium bicarbonate solution, and then dehydrated with anhydrous sodium sulfate and then subjected to distillation.