Anhydrous ethanol has the following specific applications in different fields:

1. Pharmaceutical field: used as a solvent or reaction medium for the preparation of drugs; formulated as a disinfectant for sterilization operations; used in the extraction of herbal medicines to extract the active ingredients; used as a semi-synthetic raw material and an ion-converting agent in the production of pharmaceuticals.

2. Cosmetics and personal care products: to help hair dyes penetrate hair better; as a solvent to help fragrances in perfumes dissolve better; used in the preparation of mouthwash, oral disinfectant and other products.

3. Food industry: used as a food additive, for example, as an ingredient in seasonings, colorings, etc.; in some brewing processes, anhydrous ethanol is used to control the fermentation process.

4. Chemical field: as a solvent, used to dissolve organic substances that are not easily soluble in water; as a reducing agent, used to reduce some metal ions or organic compounds; used in the preparation of some organic compounds, such as esters, ethers, etc.; used in the preparation of some chemicals, such as ethyl acetate, ethyl acetate, etc.; it can be used in the preparation of some medicines, such as vitamin A, vitamin E and so on.

5. Other industrial fields: widely used in plastics, coatings, paints, fibers, rubber, chemical fibers, synthetic fibers and other industries; used in the preparation of pesticides, dyes, spices and other chemicals; used as a dehydrating agent and aqueous solvents.

6. Printing industry: anhydrous ethanol is a component of ink, as a volatile organic solvent, to promote the ink ink volatilization and drying, accelerate the printing speed, improve product quality and yield.

7. Fuel and engine performance enhancement: anhydrous ethanol can be used in the preparation of some fuels, as an alternative fuel to replace traditional petroleum fuels; it can also be used in the preparation of some biofuels, such as biodiesel, bioethanol, etc.; anhydrous ethanol can also be used as a mixture of fuels for internal combustion engines, to improve the fuel combustion efficiency and cleaning capacity.