Application:

The first category: hydrogen fluoride with a purity of more than 99% and named AHF, which is in a gaseous state and due to its high purity, has the following special

applications:

* HF gas is used to separate uranium isotopes.

* HF gas acts as a catalyst in the oil and petrochemical industry.

* HF gas is mainly used in the production of aluminum, chlorofluorocarbons and polytetrafluoroethylene.

* HF gas is used in the production of semiconductors to remove oxides from the surface of silicon wafers. The second category: HF (hydrofluoric acid) solution with a purity of 60%, which is in the form of a liquid solution, and due to its low purity, it has the following

different uses:

* It is used in the steel industry to polish stainless steels: because it has the ability to react with metal oxides.

* It is also used as a glass solvent in laboratories.

* It is used in the production of hexafluorine and silicic acid (H2SiF6).

* In the production of potassium hydrogen fluoride as a mattifying agent and as a starting material in the production of elemental fluorine.

* It is used in the production of hexafluoride and silicates, such as hexafluoride and silicate of magnesium, zinc and copper, which are easily dissolved in water. In addition, they are mainly used as preservatives in wood protection.

* Sodium hexafluorosilicate is used in water fluoridation.

* Boron trifluoride is obtained from the reaction of hydrogen fluoride and boric acid in the presence of sulfuric acid, which is sold in pressurized gas cylinders. This substance is used as a complex or additive compounds (for example, with ethers, alcohols, carboxylic acids, etc.) or in pure form as a Friedel-Crafts catalyst.

* Tetrafluoroboric acid, which is produced as a 50% aqueous solution of boric acid and hydrofluoric acid, and other fluorine and alkaline borates, ammonium, and transition metals are used in the galvanic layer of metals, as a melting agent, straw ignition, etc.

* It is used in electrochemical fluorination of organic compounds. In this method, fluorine compounds are obtained by electrolysis of the corresponding non-fluorine compounds in liquid hydrogen fluoride. They are used in herbicides, straw combustibles such as C4F9SO3K, repellents and grease for textiles, fire extinguishers, emulsifiers for tetrafluoroethylene polymerization, flow control agents and dripping colors, hardening agents, catalysts and membranes.

* In the production of polyvinyl fluoride (PVF), the combination of acetylene and hydrofluoric acid and the polymerization of the obtained vinyl fluoride are used, which causes the parts to be covered against water.