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Zinc sulphate heptahydrate Ph. Eur., USP
Irritant
Corrosive
Environment
Zinc sulphate heptahydrate Ph. Eur., USP
Supplier:  VWR Chemicals
Certificates
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Irritant
Corrosive
Environment
Zinc sulphate heptahydrate Ph. Eur., USP
Supplier:  VWR Chemicals
Certificates

Specification Test Results

  • Appearance:
    Conforms (see CoA/CoS)
  • Residual solvents:
    Unlikely by manuf.process
  • Cd (Cadmium):
    Max. 1 ppm
  • Co (Cobalt):
    Max. 1 ppm
  • Hg (Mercury):
    Max. 3 ppm
  • Ni (Nickel):
    Max. 3 ppm
  • V (Vanadium):
    Max. 1 ppm
  • Conforms to Ph.Eur./USP:
    Passes test
  • Ph.Eur. specifications::
    Max. 100 ppm
  • Assay [Ph.Eur.]:
    99.0 --> 104.0 %
  • Identification A:
    Passes test Ph.Eur.
  • Identification B:
    Passes test Ph.Eur.
  • Identification C:
    Passes test Ph.Eur.
  • Appearance of solution:
    Passes test Ph.Eur.
  • pH (5 %) [Ph.Eur.]:
    4.4 --> 5.6
  • Cl (Chloride) [Ph.Eur.]:
    Max. 300 ppm
  • Fe (Iron) [Ph.Eur.]:
    Max. 100 ppm
  • Assay [USP]:
    99.0 --> 108.7 %
  • As (Arsenic) [USP]:
    Max. 14 ppm
  • Pb (Lead) [USP]:
    Max. 20 ppm
  • Alkalies and alkaline earths [USP]:
    Max. 0.9 %
  • Acidity:
    Passes test USP

Specification Test Results