Sulfates magnesium MgSC

A solution of 14.79 g of crude commercial meta-chloroperoxybenzoic acid (Aldrich Chemical Company, Inc., or Janssen Chimica, approximately 70%) in 150 mL of dichloromethane is dried over magnesium sulfate (MgSC>4), filtered, and the MgSC>4 is washed twice with 10 mL of dichloromethane. 

The magnesium hydroxide, carbonate and oxide then react with strong acids in the paper to form a neutral salt. Sulfuric acid (H2S04), for instance, is converted to magnesium sulfate (MgSC>4 [Epsom Salts]) and water, when it reacts with magnesium hydroxide ... 

An important factor in the formulation of dishwashing liquids is the presence of inorganic ions. These can be present as impurities in all commercial surfactants. They are also present as calcium and magnesium carbonates, sulfates, and chlorides in hard water. They are deliberately added to products by some manufacturers as important performance boosters and viscosity modifiers. As performance boosters, divalent ions have a special function and are added as an inorganic salt, such as MgSC>4, or as the counterion of an anionic surfactant, such as Mg(LAS)2. 

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