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    1. Sulfuric acid reagent

      Product   name

      Sequence   numbers

      Testing   programmes

      Analytical   reagent

      Sulfuric acid reagent(GB/T625-2007)

      1

      H2SO4(%)

      95.0~98.0

      2

      incinerated residue(%)

      0.001

      3

      chloride(%)

      0.00003

      4

      nitrate(%)

      0.00005

      5

      ammonium salt(%)

      0.0002

      6

      Fe(%)

      0.00005

      7

      As(%)

      0.000003

      8       

      chromaticity(Hazen

      10

      9

      potassium permanganate-reducing(%)

      0.0005

      10

      Cu(%)

      0.00001

      11

      Pb(%)

      0.00001

      Notice:   different concentrations of sulfuric acid reagent   can be prepared according to the customer's need


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