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          Potassium pyrophosphate

          Molecular Formula: K4P2O7
          MolecularWeight: 330.34
          Appearance: while powder or block>Dissolve in water and non-disslove in alcohol. Moisture absorption in air.
          Usage: Mainly used in plating without cyanide and bleaching leather products act as stabilizer also adopted in detergent industry .Under two special conditions, Potassium Pyrophosphate must be utilized. First for heavy-dirt detergent in controlling foam, secondly for cleaning metal surface.

          Main Specifications:

          Description Fine-class Superfine-class Food-class
          purification K4P2O7 96% 98% 98%-101%
          Cl content 0.45% 0.45% 0.011%
          Fe content 0.005% 0.005% or 0.0015% 10ppm
          P2O5 above 41.2% above 42.27% above 42.2%
          Water-fast material 0.08% 0.05% 0.05%
          PO43- no sunk yellowly titrated with 0.1 NAgNO3
          Pbit 0.01% 0.005% 20ppm
          weightlessness of burning 1% 0.8% 0.8%
          Apparent White powder or white particle White powder
          SO4     0.019%
          F content     10ppm
          As content     3ppm
          PH 10.0~10.7
          state of the aqueous Colourless
          Quality guarantee period 18month 12month 12month

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