Zinc sulphate

Zinc sulphate heptahydrate is commonly used for laboratory applications as a source of zinc. It is also used in textile production and for pharmaceuticals.

ZnSO4 · 7H2O


Chemical Formula

ZnSO4 · 7H2O

EC Number


CAS Number


  • Home & Personal care
  • Metal derivatives
  • Laboratory chemical
  • Textile & Leather
  • Pharmaceuticals


  • pH in 5% water solution: 4-6
  • Zinc (Zn): min. 22.3%
  • Zinc sulphate: min. 55%
  • Lead (Pb): max. 25 ppm
  • Cadmium (Cd): max 10 ppm
  • Arsenic (As): max. 1 ppm
  • Mercury (Hg): max. 1 ppm
  • Free moisture: max. 0.5%
  • Solubility in water: ca. 100%
  • Particle size: max. 2 mm

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