Anhydrous magnesium sulfate

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Anhydrous Magnesium Sulfate

Anhydrous magnesium sulfate (MgSO4) is a hygroscopic drying agent often used in freebasing[1].

It can be retrieved from Epsom Salt[2] (MgSO4 · 7H2O), which is commonly used in salt baths.

MgSO4 · 7H2O → MgSO4 · 1H2O at 150°C

MgSO4 · 1H2O → MgSO4 at 200°C[3]

The anhydrous form is soluble in water, slightly soluble in alcohol, and insoluble in acetone at 20°C[4].



Reference

  1. ↑ Drytek [1]
  2. ↑ Epsom Salt MSDS [2]
  3. ↑ Anhydrous Magnesium Sulfate and Moisture [3]
  4. ↑ Magnesium Sulfate on Wikipedia [4]
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