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Sodium hydroxide ≥98%, pellets, EMPROVE® ESSENTIAL NF, JP, E524, Ph. Eur., BP, FCC, extra pure suitable for use as excipient, SAFC®
 :  MERCK PRODUCTION CHEMICALS
 
Sodium hydroxide ≥98%, pellets, EMPROVE® ESSENTIAL NF, JP, E524, Ph. Eur., BP, FCC, extra pure suitable for use as excipient, SAFC®
 :  MERCK PRODUCTION CHEMICALS
 

 

  • Environmentally Preferable:

 

 

  • Assay (acidimetric,NaOH):
    ≥ 98.0 %
  • Assay (total alkalinity calc. as NaOH):
    98.0 - 100.5 %
  • Assay (Na):
    54.0 - 59.8 %
  • Identity:
    passes test
  • Appearance of solution:
    passes test
  • Insoluble substances and organic matter:
    passes test
  • Carbonate (as Na₂CO₃):
    ≤ 0.5 %
  • Chloride (Cl):
    ≤ 0.015 %
  • Phosphate (PO₄):
    ≤ 0.002 %
  • Silicate (SiO₂):
    ≤ 0.01 %
  • Sulfate (SO₄):
    ≤ 0.010 %
  • Total nitrogen (N):
    ≤ 0.0005 %
  • Heavy metals (as Pb):
    ≤ 0.0005 %
  • Al (Aluminium):
    ≤ 0.001 %
  • As (Arsenic):
    ≤ 0.0003 %
  • Cu (Copper):
    ≤ 0.0005 %
  • Fe (Iron):
    ≤ 0.0010 %
  • Hg (Mercury):
    ≤ 0.00001 %
  • K (Potassium):
    ≤ 0.1
  • Pb (Lead):
    ≤ 0.00005 %
  • Zn (Zinc):
    ≤ 0.0025 %
  • Residual solvents (Ph Eur/USP/ICH):
    excluded by manufacturing process

 

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