Magnesium sulphate, or Epsom salt, has a variety of uses across different fields. Here are some of the major uses of magnesium sulphate:

1. Medical uses: Epsom salt can be used as a laxative to relieve occasional constipation. It can also be used as a soaking agent to help soothe sore muscles, reduce inflammation, and promote relaxation. Additionally, it can be used as a treatment for skin conditions such as eczema and psoriasis.
2. Agricultural uses: Epsom salt is commonly used as a fertilizer for plants due to its high magnesium content. It can help improve plant growth, increase nutrient absorption, and prevent nutrient deficiencies.
3. Industrial uses: Magnesium sulphate is used in the production of various industrial products, including paper, textiles, and detergents. It is also used as a coagulant in the manufacturing of tofu.
4. Veterinary uses: Epsom salt can be used as a treatment for horses to reduce inflammation and soreness in muscles and joints.