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[Chemical Knowledge]：Properties and uses of diacetone alcohol

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The properties and uses
of diacetone alcohol
1. Introduction

Diacetone alcohol is an important organic chemical raw material, widely used in the synthesis of pharmaceuticals, pesticides, spices, dyes and various fine chemical products. It has unique physical and chemical properties and is of great value in the field of chemical production.

2. properties of diacetone alcohol

1. physical properties: diacetone alcohol is a colorless transparent liquid, pleasant aroma. Relative density 1.0426(20/4 ℃), melting point -44 ℃, boiling point 242.4 ℃,131-132 ℃(0.53kPa),120 ℃(0.267kPa),99 ℃(0.133kPa),79-80 ℃(0.067kPa), flash point 116 ℃, viscosity (20 ℃)4.17mPa s, refractive index nD₂ 1.4316, spontaneous ignition point 465 ℃. It can be miscible with water, ethanol, ether, acetone, chloroform and glycerin, miscible with common volatile organic solvents, insoluble in petroleum ether and oils.
2. chemical properties: diacetone alcohol with keto and enol type two kinds of structure, so the nature of lively, can occur a variety of reactions. For example, it can react with an acid to generate a salt, react with an aldehyde, a ketone to generate a condensate, and can also react with esterification, etherification, and halogenation.

3. the use of diacetone alcohol

1. pharmaceutical intermediates: diacetone alcohol can be used as intermediates of drug synthesis, for the production of antibacterial drugs, anticancer drugs, antiepileptic drugs and other drugs.
2. Pesticide intermediates: Diacetone alcohol can also be used in the synthesis of pesticides, for example, as an intermediate for pesticides such as insecticides, fungicides, and herbicides.
3. perfume synthesis: diacetone alcohol has a pleasant aroma, can be used for the synthesis of spices, used to modulate the aroma of food, cosmetics and other products.
4. Dye synthesis: Diacetone alcohol can be used as an intermediate in dye synthesis for the production of dyes of various colors.

4. production process

diacetone alcohol production process mainly has the ketone alcohol condensation method and the ethylene ketone method. Among them, the ketone-alcohol condensation method is a method in which acetone is used as a raw material and condensed with alcohols in the presence of an acidic catalyst to produce diacetone alcohol. The ketene rule is that diacetone alcohol is produced by the reaction of ketene with alcohols.

5. Market Status and Prospects

With the continuous development of the fine chemical industry, the market demand for diacetone alcohol is also increasing. At present, there are many manufacturers of diacetone alcohol in China, but there are great differences in product quality and output. In the future, with the continuous progress of technology and the expansion of application fields, the market prospect of diacetone alcohol will be broader.

6. conclusion

diacetone alcohol as an important organic chemical raw material, has a wide range of uses and good market prospects. In the future development, technology research and development and product innovation should be increased to improve product quality and output to meet market demand and promote the sustainable development of the fine chemical industry.

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