Zinc Sulphate HeptaHydrate (ZnSO4•7H2O)​

  • Product Information
  • Chemical Formula ZnSO4•7H2O
  • Molar Mass 287.6 g/mol
  • Appereance Granules or Crystalline Powder


ZINC SULFATE HEPTAHYDRATE, White vitriol (heptahydrate), Zinc sulfate heptahydrate, EP grade, Zinc sulphate hydrate, Zinc vitriol (heptahydrate), Zinc sulfate (ZnSO4) heptahydrate.

About the Product

Zinc sulfate is an inorganic compound. The most common form includes water of crystallization as the heptahydrate, with the formula ZnSO4•7H2O. It was historically known as “white vitriol”. Zinc sulfate and its hydrates are colourless solids.



  • Compound Formula: H14O11SZn
  • Molecular Weight: 287.56 g/mol
  • Appearance: White crystals or lumps
  • Melting Point: 100°C
  • Boiling Point:  280 °C (decomposes)
  • Density: 1.97 g/cm3
  • Solubility in H2O: N/A
  • Exact Mass: 285.954824
  • Monoisotopic Mass: 285.954834 Da
  • The main application of Zinc Sulphate Heptahydrate is as a coagulant in the production of rayon.
  • It is also a precursor to the pigment lithopone.
  • Zinc sulfate is used to supply zinc in animal feeds, fertilizers, and agricultural sprays.
  • It is used as in electrolytes for zinc plating, as a mordant in dyeing, as a preservative for skins
  • In leather and in medicine as an astringent and emetic
  • Zinc Sulphate Heptahydrate is also used as laboratory reagent