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Auspicious Clouds Chemical
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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