| Product No. | Product name | specifications | 
| 1.01767.010 | Potassium pyrophosphate trihydrate | AR500g | 
| 1.01767.020 | Potassium pyrophosphate trihydrate | AR25kg | 
| Item | AR | CP | 
| Assay(K4P2O7·3H2O) | ≥99.0% | ≥98.0% | 
| Insoluble matter in water | ≤0.01% | ≤0.01% | 
| Chloride(Cl) | ≤0.002% | ≤0.003% | 
| Sulfate(SO4) | ≤0.002% | ≤0.002% | 
| Iron(Fe) | ≤0.002% | ≤0.003% | 
| Arsenic(As) | ≤0.0005% | ≤0.0005% | 
| Heavy metals(as Pb) | ≤0.001% | ≤0.004% | 




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