- Used in the production of hydrochloric acid, which is used in a variety of industrial processes, including metalworking, food processing, and electronics manufacturing.

- Production of polyvinyl chloride (PVC), a versatile plastic used in a wide range of products, including pipes, window frames, and toys.

- Used as a flux in soldering and welding, helping to remove oxides and other impurities from metal surfaces.

- Used in the production of various inorganic compounds, such as sodium chloride (table salt) and calcium chloride (used for de-icing roads).

Medical

- Used in the production of a variety of pharmaceuticals, including antibiotics, vitamins, and pain relievers.

- Used in the production of contrast agents, which are used in medical imaging to enhance the visibility of certain structures in the body.

- Used as an antiseptic and disinfectant in various medical applications.

Environmental

- Used in the production of hydrochloric acid, which is used in water treatment processes to remove impurities and adjust the pH level.

- Used in the production of various metal chlorides, which are used as coagulants in wastewater treatment.

- Used in the production of hydrogen, a clean-burning fuel that can be used in fuel cells and other energy applications.

Other

- Used as a laboratory reagent in a wide variety of chemical reactions and experiments.

- Used in the production of various consumer products, such as batteries, fertilizers, and dyes.

- Used in the production of some types of glass and ceramics.