1. Products
          PRODUCTS
          Magnesium sulfate
          NAME: Magnesium sulfate

          Item

          Index

          Prime

          First

          Qualified

          Magnesium sulfate( MgSO4.7H2O) Main content ≥

          96.0

          95.0

          90.5

          Boric acid ( H3BO3)content  ≥

          3.7

          3.6

          3.0

          water-fast substances ≤

          0.010

          0.040

          0.060

          Oxide( CI) ≤

          0.050

          0.10

          0.15

          Ferrum ( Fe) ≤

          0.0020

          0.0030

          0.0050