Used as a dust suppressant on roads and construction sites due to its hygroscopic nature, which helps retain moisture and reduce airborne particles. Commonly applied in the production of magnesium oxide cements for building materials. Serves as a coagulant in the preparation of tofu from soy milk. Utilized in medical formulations as a source of magnesium for treating deficiencies. Employed in wastewater treatment to enhance solid-liquid separation. Also used in snow and ice control, as it lowers the freezing point of water and works at lower temperatures compared to sodium chloride.