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Sodium dihydrogen phosphate dihydrate Ph. Eur., USP, BP
 :  VWR Chemicals
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Sodium dihydrogen phosphate dihydrate Ph. Eur., USP, BP
 :  VWR Chemicals
 

 

  • Environmentally Preferable:

 

 

  • Appearance:
    Conforms (see CoA/CoS)
  • Heavy metals (as Pb):
    ≤10 ppm
  • Residual solvents:
    Unlikely by manuf.process
  • As (Arsenic):
    ≤2 ppm
  • Cd (Cadmium):
    ≤1 ppm
  • Co (Cobalt):
    ≤1 ppm
  • Hg (Mercury):
    ≤3 ppm
  • Ni (Nickel):
    ≤1 ppm
  • Pb (Lead):
    ≤4 ppm
  • V (Vanadium):
    ≤5 ppm
  • Conforms to Ph.Eur./USP/BP:
    Passes test
  • Ph.Eur./BP specifications::
    .
  • Assay (dried substance) [Ph.Eur./BP]:
    98.0 - 100.5 %
  • Identification A:
    Passes test Ph.Eur./BP
  • Identification B:
    Passes test Ph.Eur./BP
  • Identification C:
    Passes test Ph.Eur./BP
  • Appearance of solution:
    Passes test Ph.Eur./BP
  • pH (5 %) [Ph.Eur./BP]:
    4.2 - 4.5
  • Reducing substances:
    Passes test Ph.Eur./BP
  • Cl (Chloride) [Ph.Eur./BP]:
    ≤200 ppm
  • SO4 (Sulphate) [Ph.Eur./BP]:
    ≤300 ppm
  • Fe (Iron) [Ph.Eur./BP]:
    ≤10 ppm
  • Loss on drying (130°C) [Ph.Eur./BP]:
    21.5 - 24.0 %
  • USP specifications::
    .
  • Assay (calculated on anhydrous) [USP]:
    98.0 - 103.0 %
  • Insoluble substances [USP]:
    ≤0.2 %
  • Cl (Chloride) [USP]:
    ≤0.014 %
  • SO4 (Sulphate) [USP]:
    ≤0.15 %
  • Al, Ca and related elements:
    Passes test USP
  • As (Arsenic) [USP]:
    ≤8 ppm
  • pH (25°C; 1 g/20 ml) [USP]:
    4.1 - 4.5
  • Water determination [USP]:
    18.0 - 26.5 %

 

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