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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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