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L(+)-Ascorbic acid 99.0-100.5% USP, Ph. Eur.
 :  VWR Chemicals
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L(+)-Ascorbic acid 99.0-100.5% USP, Ph. Eur.
 :  VWR Chemicals
 

 

  • Appearance:
    Conforms (see CoA/CoS)
  • Heavy metals (as Pb):
    Max. 10 ppm
  • Residual solvents (CPMP/ICH/283/95):
    Conforms
  • Residues of metal catalysts or reagents:
    Unlikely by manuf.process
  • As (Arsenic):
    Max. 2 ppm
  • Cd (Cadmium):
    Max. 1 ppm
  • Co (Cobalt):
    Max. 1 ppm
  • Hg (Mercury):
    Max. 2 ppm
  • Ni (Nickel):
    Max. 1 ppm
  • Pb (Lead):
    Max. 2 ppm
  • V (Vanadium):
    Max. 1 ppm
  • Conforms to Ph.Eur./USP:
    Passes test
  • Ph.Eur. specifications::
    Max. 0.1 %
  • Assay [Ph.Eur.]:
    99.0 --> 100.5 %
  • Identification B:
    Passes test Ph.Eur.
  • Identification C [Ph.Eur.]:
    2.1 --> 2.6
  • Appearance of solution:
    Passes test Ph.Eur.
  • Specific optical rotation [Ph.Eur.]:
    20.5 --> 21.5 °
  • Impurity E (Oxalic acid) [Ph.Eur.]:
    Max. 0.2 %
  • Impurity C [Ph.Eur.]:
    Max. 0.15 %
  • Impurity D [Ph.Eur.]:
    Max. 0.15 %
  • Unspecified impurities [Ph.Eur.]:
    Max. 0.10 %
  • Sum of impur.other than C and D[Ph.Eur.]:
    Max. 0.2 %
  • Reporting threshold [Ph.Eur.]::
    Max. 0.05 %
  • Cu (Copper) [Ph.Eur.]:
    Max. 5 ppm
  • Fe (Iron) [Ph.Eur.]:
    Max. 2 ppm
  • Sulphated ash [Ph.Eur.]:
    Max. 0.1 %
  • Assay [USP]:
    99.0 --> 100.5 %
  • Identification A:
    Passes test USP
  • Residue on ignition [USP]:
    Max. 0.1 %
  • Specific optical rotation [USP]:
    20.5 --> 21.5 °