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Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99.0-100.5% USP, Ph. Eur.
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99.0-100.5% USP, Ph. Eur.
Supplier:  VWR Chemicals
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Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) 99.0-100.5% USP, Ph. Eur.
Supplier:  VWR Chemicals
Certificates

Specifications

  • Environmentally Preferable:

Specifications

Specification Test Results

  • Appearance:
    Conforms (see CoA/CoS)
  • Heavy metals (as Pb):
    Max. 10 ppm
  • Residual solvents Class 2 (ICH Q3C) ::
    Passes test USP
  • Methanol:
    Below option 1 limit
  • Other residual solvents(Ph.Eur./ICH):
    Unlikely by manuf.process
  • 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. 50 ppm
  • Pb (Lead):
    Max. 3 ppm
  • V (Vanadium):
    Max. 2 ppm
  • Conforms to Ph.Eur./USP:
    Passes test
  • Ph.Eur. specifications::
    Max. 0.1 %
  • Assay (calculated on dried) [Ph.Eur.]:
    99.0 --> 100.5 %
  • Identification B [Ph.Eur.]:
    168 --> 174 °C
  • Identification C:
    Passes test Ph.Eur.
  • Appearance of solution:
    Passes test Ph.Eur.
  • pH (20°C; 5 %) [Ph.Eur.]:
    10.0 --> 11.5
  • Related substances [Ph.Eur.]:
    Max. 1.0 %
  • Cl (Chloride) [Ph.Eur.]:
    Max. 100 ppm
  • Fe (Iron) [Ph.Eur.]:
    Max. 10 ppm
  • Loss on drying (105°C) [Ph.Eur.]:
    Max. 0.5 %
  • Sulphated ash [Ph.Eur.]:
    Max. 0.1 %
  • Assay (calculated on dried basis) [USP]:
    99.0 --> 101.0 %
  • Identification A:
    Passes test USP
  • Identification B:
    Passes test USP
  • Residue on ignition [USP]:
    Max. 0.1 %
  • Melting range or temperature [USP]:
    168 --> 172 °C
  • pH (5 %) [USP]:
    10.0 --> 11.5
  • Loss on drying (105°C; 3 h) [USP]:
    Max. 1.0 %

Specification Test Results

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