Used primarily in the production of aluminum, where it serves as a flux to lower the melting point of alumina in electrolytic cells. Also employed in the manufacture of uranium compounds during nuclear fuel processing, facilitating the conversion of uranium oxides to uranium hexafluoride. Commonly used in etching glass and ceramics due to its ability to release hydrofluoric acid upon contact with water. Utilized in the synthesis of fluorocarbons and as a source of fluoride ions in electroplating baths, especially for aluminum and magnesium alloys. Applied in cleaning and pickling metals to remove oxides and scale from surfaces. In the fertilizer industry, it serves as a starting material for producing various fluorides used in phosphate fertilizer processes, helping to capture fluoride gases generated during production. Also found in some insecticides and wood preservatives due to its biocidal properties. Due to its high corrosiveness, it must be handled with caution and under strict environmental controls.