Magnesium Sulfate Heptahydrate Agro / Technical Grade



In agriculture and gardening, magnesium sulfate is used to correct magnesium deficiency in soil, since magnesium is an essential element in the chlorophyll molecule. It is most commonly applied to potted plants or to magnesium hungry crops such as potatoes, roses, and tomatoes. The advantage of magnesium sulfate over other magnesium soil amendments (such as dolomitic lime) is its high solubility. Its application may be foliar or drop watering.


Woven, laminated polypropylene bags with polyethylene liner, properly sealed. Available in 25 kg and 50 kg bags.


  • Molecular Formula: MgSO4.7H2O
  • Synonyms: Epsom salt, Bitter salt
  • Physical State: Fine transparent / White crystals
  • Solubility: High solubility in water (100%) 
  • Odor: Odorless


Content Percentage
Purity 99.5% min.
MgO 16.50% min.
MgSO4 48.5% ± 0.5%
Mg 9.6% min
S 13.0% min
H2O 51.0%
Heavy Metals Max <10 ppm
PH in 5% solution 3.0