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 winter road maintenance as a de-icing agent because it lowers the freezing point of water and remains effective at lower temperatures compared to sodium chloride.

Employed in the production of magnesium metal, serving as a source of magnesium in electrolytic separation processes. Also used as a coagulant in the preparation of tofu from soy milk, sometimes as an alternative to calcium sulfate.

Utilized in agriculture as a source of magnesium for plant nutrition, especially in magnesium-deficient soils and for crops requiring high magnesium, such as legumes and certain vegetables, where magnesium is a key component of chlorophyll.

Found in pharmaceuticals and cosmetics for its moisturizing and skin-conditioning properties, and as a magnesium source in dietary supplements.

Used in some cement formulations to improve setting properties and strength. In the chemical industry, it acts as a catalyst or intermediate in organic synthesis and in wastewater treatment to control odors and aid in the precipitation of contaminants.