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Swiss Carbonate

Magnesium Sulphate Heptahydrate

Magnesium Sulphate Heptahydrate

Product Details

Purity as MgSo4 7H2O 99.5% to 99.9%
Magnesium Sulphate as MgSo4 48.50% min
Magnesium Oxide as Mg0 16% to 17% min
Magnesium as Mg 9.60% min
Sulphur as SO4 38.5% min
Sulphur as S 12.70% min
pH of 5% aq. solution 7 (+/-) 0.5%
Chlorides of CI % by mass 0.0009%
Lead as Pb Nil
Arsenic as As2O3 < 1 ppm
Iron as Fe 10 ppm
Manganese as Mn 15 ppm
Water soluble Fully soluble

Magnesium Sulphate Heptahydrate (Epsom Salt) provides a soluble source of Magnesium and Sulphur for plants. Magnesium is a secondary micronutrient. Magnesium is the central atom of the chlorophyll molecule and is therefore important in photosynthesis. Magnesium is important in protein synthesis and enzyme processes, and it helps plants to absorb and use phosphorous and nitrogen. Magnesium sulphate heptahydrate can be applied dry to the soil, dissolved and used as a foliar spray or dissolved in hydroponic nutrient solutions. It can be incorporated into fertilizer blends.


Attributes :

  • High purity
  • White crystals
  • Size: 2mm to 4mm
  • 25 kg HDPE bags with liners


Uses :

  • As a coagulant in making tofu
  • Foot baths to soothe sore feet
  • Absorbed through skin it reduces inflammation
  • Improves magnesium or sulphur deficiency in soil
  • Is commonly applied to plants and magnesium deficient crops
  • As bath salts, especially in floatation therapy to raise water's specific gravity for buoyancy

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