Phenol ketone products

Plastic rubber

Current Location： Home > News > Chemical Knowledge > Properties and Uses of Anhydrous Hydrogen Fluoride

[Chemical Knowledge]：Properties and Uses of Anhydrous Hydrogen Fluoride

Read： 446 Time：20months ago Source：Transform the World with Simplicity

Anhydrous hydrogen fluoride is an important raw material for chemical production and has a wide range of uses. This article will detail the nature and use of anhydrous hydrogen fluoride.

1. the nature of anhydrous hydrogen fluoride

Anhydrous hydrogen fluoride (HF) is a colorless, pungent odor gas, with strong corrosive and toxic. It is very soluble in water in the air to form hydrofluoric acid. Anhydrous hydrogen fluoride is very active in chemical properties and can react with many metals, non-metals and compounds to generate the corresponding fluorides.

Anhydrous hydrogen fluoride has the following physical properties:

1. Boiling point:-35.3 ℃;
2. Melting point:-89.9 ℃;
3. Density: 1.25kg/m³ at 0 ℃ and 101.3kPa.

2. the use of anhydrous hydrogen fluoride

Anhydrous hydrogen fluoride is widely used in chemical industry, metallurgy, electronics, medicine and other fields. The following are its main uses:

1. Preparation of fluorine-containing compounds

Anhydrous hydrogen fluoride can be Used to prepare various fluorine-containing compounds, such as freon, fluorine rubber, fluorine plastics, etc. These fluorine-containing compounds have excellent properties and are widely used in aviation, aerospace, automotive, electronics and other fields.

2. Etching glass

Anhydrous hydrogen fluoride can react with silicon dioxide in the glass to generate volatile silicon tetrafluoride, thereby etching the glass. This property makes anhydrous hydrogen fluoride widely used in the glass processing industry.

3. Cleaning semiconductor material

Anhydrous hydrogen fluoride can be used to clean oxides and contaminants on the surface of semiconductor materials and improve the purity of semiconductors. Anhydrous hydrogen fluoride plays an important role in the manufacturing process of integrated circuits.

4. Preparation of high-purity electronic-grade hydrofluoric acid

Anhydrous hydrogen fluoride can be used to prepare high-purity electronic-grade hydrofluoric acid for the electronics industry and precision manufacturing.

In short, anhydrous hydrogen fluoride, as an important raw material for chemical production, has an important position and role in the development of national economy and science and technology.

Previous： Properties and Uses of Concentrated Sulfuric Acid

Next： Properties and Uses of Dilute Phosphoric Acid

News Categories