Used in dust control on roads and construction sites by absorbing moisture from the air and keeping surfaces damp. Commonly applied as a de-icing agent in winter because it lowers the freezing point of water and works at lower temperatures than salt. Employed in concrete treatment to improve strength and durability by accelerating curing. Serves as a source of magnesium in agricultural fertilizers to correct magnesium deficiency in soils. Utilized in the production of tofu as a coagulant to solidify soy milk. Found in pharmaceuticals and supplements for magnesium replacement therapy. Also used in wastewater treatment to enhance phosphorus removal and in industrial processes as a catalyst or raw material.