High Quality Food Additive Potassium Pyrophosphate 99% Purity

Chemical name:Tetrapotassium pyrophosphate
Molecular formula:K4P2O7
Molecular weight: 330.34
Standard executed: HG/T3591-1999
CAS Number:7320-34-5Properties:
Tetrapotassium pyrophosphate is in white powder or granular. Relative density 2.534 g/cm3and melting point 1109°C; Tetrapotassium pyrophosphateis apt to absorb humidity in the open air to deliquescent; Soluble in water but insoluble in ethanol, and at 25°C,its solubility in water is 187g/100g water; Tetrapotassium pyrophosphatecan chelate with alkaline metals ions or heavy metal ions.Usage:
Tetrapotassium pyrophosphatemainly applied to electroplating without cyanate, industrial or household detergents; It can used as a buffering reagent as well as stabilizer for hydrogen peroxide; It can also be used as dispersion agent for ceramic, clay, latex and pigments etc.Storage and Transport:Tetrapotassium pyrophosphateshould be stored in a ventilative and dry warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, so as to avoid damage to plastic bags. Furthermore,Tetrapotassium pyrophosphateshould be stored separately from poisonous substances.Packaging:
25kg/PP bag or kraft paper bagSpecification:
ItemsSpecificationPurity(K4P2O7)≥98.0%Iron (Fe) ppm≤20ppmPH value (1% sol)10-11Loss on drying≤0.20%AppearanceWhite powder Water insoluble matter≤0.10%Heavy metals(as Pb)≤5ppmAs≤3ppm