Magnesium sulfate is an important magnesium salt widely used in agriculture, animal nutrition, industry, food processing, and pharmaceuticals. According to the amount of crystallization water, the most common commercial forms include: Anhydrous Magnesium Sulfate: MgSO₄ Magnesium Sulfate Monohydrate: MgSO₄·H₂O Magnesium Sulfate Heptahydrate: MgSO₄·7H₂O All three provide magnesium ions (Mg²⁺) and sulfate ions after dissolution. However, differences in crystallization water resu