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          Phosphoric acid

          Check Item

          standard value

          Phosphoric acid (H3PO4) %

          75.0-86.0.

          Fluoride (as F) mg/kg

          ≤10

          Readily oxidizable substance (H3PO3) %

          ≤0.012

          Arsenic (As) mg/kg

          ≤0.5

          Heavy metals (as Pb) mg/kg

          ≤5.0

          Color status

          Colorless transparent or slightly thick liquid

          Sulfate (SO4)%

           

          Chloride (C1) %

           

          Iron(Fe)%

           

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