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Potassium biphthalate
Molecular formula: KHC8H4O4
Molecular weigth: 204.22
| Purity ≥ | 99.5-100.05% |
| Solution response | measure up |
| Clarifying test | measure up |
| Water insoluble substances% ≤ | 0.003 |
| Chloride(Cl)% ≤ | 0.003 |
| Sulfate(SO4)% ≤ | 0.006 |
| Ammonium(NH4)% ≤ | 0.003 |
| Fe% ≤ | 0.0005 |
| Na% ≤ | 0.02 |
| Heavy metal (Pb)% ≤ | 0.0005 |



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