Used to dissolve bauxite ore, the raw material for aluminum production.

Used in saponification, the chemical process that converts fat, tallow and vegetable oils into soap. It also is used to manufacture anionic surfactants, a crucial component in most detergents and cleaning products.

Used to process cotton and dye synthetic fibers, such as nylon and polyester.

Used to make bleach, which has industrial and consumer applications such as mold and mildew control around the home.

Used to explore, produce and process petroleum and natural gas

The largest application for caustic soda worldwide. Uses include in pulping and bleaching processes, the de-inking of waste paper and water treatment.