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Sodium hydroxide 50% (w/w) in aqueous solution (760 g/L) analytical reagent
 
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Sodium hydroxide 50% (w/w) in aqueous solution (760 g/L) analytical reagent
 

 

  • Appearance:
    Colorless liquid
  • Assay at 20 °C (traceable to NIST SRM 723):
    50 - 52 % (w/w)
  • Chloride (Cl):
    0.002% max
  • Heavy Metals (as Ag):
    10 ppm (0.001%) max
  • Iron (Fe):
    5 ppm (0.0005%) max
  • NH4OH Precipitate:
    0.01% max
  • Nickel (Ni):
    5 ppm (0.0005%) max
  • Nitrogen Compounds (as N):
    5 ppm (0.0005%) max
  • Phosphate (PO4):
    5 ppm (0.0005%) max
  • Potassium (K):
    0.01% max

 

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