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Magnesium sulphate, often known as Epsom salt, is a versatile chemical utilised in various markets. With its long history, its use cases are as extensive as they are varied. 

In 1618, a villager named Henry Wicker at Epsom in England tried to provide his cattle water from a well. They refused to drink it because of the bitter flavour of the water. However, the farmer discovered that the water healed wounds and rashes. The fame of Epsom salts grew over time. 

Eventually, it was recognised to be magnesium sulphate, MgSO4.

How is magnesium sulphate used?

Primarily used as a foliar and irrigated fertiliser in the agriculture sector where it improves soil fertility, creating an environment conducive to growth.

Another industry it is commonly used in is the animal nutrition industry, where it is used in animal feed (feed grade) to aid the metabolism of carbohydrates, lipids (fats) and proteins and for nerve activity and muscle contraction.

More recently, magnesium sulphate has experienced increased use in the pharmaceutical and health sectors with applications such as bath salts and isolation tanks.

It is even used as an active ingredient in pain-relieving lotions, creams and oils within the personal care industry.

Yet, there are instances of it being used in sectors as diverse as:

  • Food preparation where Magnesium sulphate is used as a brewing salt in beer production and is used as a coagulant for making tofu.
  • Construction, where it can be found being used to prepare specific types of cement by the reaction between magnesium oxide and magnesium sulphate solution.
Magnesium Sulphate used in irrigated fertiliser

Magnesium Sulphate is primarily used as a foliar and irrigated fertiliser in the agriculture sector where it improves soil fertility, creating an environment conducive to growth.

The Redox advantage

Redox’s magnesium sulphate is available in various packing sizes, including 25kg bags and bulker bags, coming in a range of forms (heptahydrate, anhydrous, trihydrate, monohydrate) and conforming to many monographs (FCC, BP/USP, OMRI) 

At Redox, we take the time to understand our markets and employ a team of skilled specialists to help guide and advise our clients. Our scale efficiency allows us to keep expenses low. At the same time, our broad selection provides clients with a “one-stop-shop” alternative for services in many sectors.

Contact one of our experts to discover how Redox can be an essential element of your sourcing strategy.

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