Used extensively in water treatment processes to remove impurities and clarify drinking water. Applied in the etching of copper and other metals in the electronics industry for printed circuit board manufacturing. Acts as a coagulant in wastewater treatment, helping to separate solids from liquids. Utilized in the production of pigments and dyes for various industrial applications. Employed in the synthesis of organic compounds as a catalyst or reagent. Used in the pharmaceutical industry for the preparation of certain drugs and medicinal compounds. Applied in the purification of industrial gases, such as hydrogen chloride. Utilized in the treatment of sewage and industrial effluents to reduce pollution. Acts as a mordant in the textile industry to fix dyes onto fabrics. Used in laboratory settings for analytical chemistry and research purposes.