1.Medical field: As a drug formulation, often to treat diseases cause by magnesium deficiency, such as magnesium deficiency, preeclampsia, etc. Also as a treatment for heart attacks and arrhythmias.
2.Industrial applications: anhydrous magnesium sulfate can be used as a preservative to protect materials in the wood and paper industries. It can also be used in the chemical industry as a catalyst, stabilizer and desiccant.
3.Agriculture: Anhydrous magnesium sulfate can be used as a magnesium supplement in agricultural fertilizers, providing the magnesium needed by plants. Magnesium plays an important role in plant growth and development, contributing to the synthesis of chlorophyll and the progress of photosynthesis.

4.Water treatment: Anhydrous magnesium sulfate can be used in water treatment process as a water softener to remove hardness substances such as calcium and magnesium ions in water.
5.Laboratory research: Anhydrous magnesium sulfate can be used as a chemical reagent in the laboratory for the preparation of other compounds, laboratory analysis and chemical reactions.

NOTE: When using or handling anhydrous magnesium sulfate, it is necessary to follow the corresponding safety operating procedures and use it in accordance with the appropriate concentration and use.