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    1. Product

      Industrial sulphuric acid

      industrial sulphuric acid
      This standard is for industrial sulphuric acid. 
      Molecular formula : H2SO4
      Relative density :98.08
      Item Index 
      Special sulfuric acid Concentrated sulfuric acid 
      Superior grade Top grade Qualified Superior grade Top grade Qualified 
      sulfuric acid(H2SO4) content: % ≥ 92.5 or 98.0 92.5 or 98.0 92.5 or 98.0 92.5 or 98.0
      free sulfur trioxide (SO3)Content, % ≥ 20.0 20.0 20.0
      ash content % ≤ 0.02 0.03 0.03 0.10 0.03 0.03 0.10
      ferrum(Fe) content, % ≤ 0.005 0.010 0.010 0.010 0.010 0.030
      arsenic(As) content, % ≤ 8*10-5 0.0001 0.005 0.0001 0.0001
      lead (Pb) content, % ≤ 0.001 0.01 0.01
      mercury (Hg) content, % ≤ 0.0005
      nitric oxide(in N) conten, % ≤ 0.0001
      sulfur dioxide(SO2) conten, % ≤ 0.01
      chlorine (Cl) content , % ≤ 0.001
      transparency, mm ≥ 160 50 50
      chromaticity ml ≤ 1.0 2.0 2.0


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