Introduction to Magnesium Sulphate: The Multifunctional Mineral Compound Magnesium sulphate, chemically represented as MgSO₄ with CAS number 7487-88-9, is a vital inorganic compound commonly known as Epsom salt. This white crystalline substance exists in various hydrated forms including heptahydrate (MgSO₄·7H₂O, CAS 10034-99-8), monohydrate, and anhydrous variants, each serving distinct industrial applications . With excellent water solubility and versatile chemical properties, magnesium sulphate has become indispensable across multiple sectors from agriculture to pharmaceuticals. The global magnesium sulphate market represents a significant economic sector, with 2025 valuations reaching approximately 7.425 billion yuan (RMB) and projected growth to 12.345 billion yuan by 2032, reflecting a compound annual growth rate of 7.53% . In…