What is the Difference Between Epsom Salt and Magnesium Sulfate?
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4 min read
Epsom salt, a naturally occurring mineral compound, is specifically the heptahydrate form of magnesium sulfate ($MgSO_4 · 7H_2O$), meaning it contains seven molecules of water in its crystalline structure. Understanding **what is the difference between Epsom salt and magnesium sulfate** lies in this distinction of water content, which affects their purity and use.