Potassium Sulfate - 1051531000 - Hóa Chất Phân Tích Merck

S              Assay    acidimetric          >=           99.0        %                           

S              insoluble matter                               <=           0.01        %                           

S              pH-value              5 %; water, 25 °C                              5.5 - 7.5                                               

S              Chloride (Cl)                       <=           0.0005   %                           

S              Total nitrogen (N)                            <=           0.0005   %                           

S              Heavy metals     as Pb     <=           0.0005   %                           

S              As (Arsenic)                        <=           0.0002   %                           

S              Ca (Calcium)                       <=           0.005     %                           

S              Fe (Iron)                              <=           0.0005   %                           

S              Mg (Magnesium)                             <=           0.002     %                           

S              Na (Sodium)                       <=           0.02        %                            

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