Used as a flux in metallurgy to remove impurities during metal refining processes. Acts as a binder in foundry sands, improving mold strength and stability. Employed in ceramic production to enhance durability and thermal resistance. Functions as a corrosion inhibitor in water treatment systems. Utilized in the manufacture of specialty glasses and cements due to its ability to form stable silicate networks. Also applied in detergents and cleaning agents as a builder to soften water and improve cleaning efficiency.