Potassium phosphate dibasic ACS reagent =98%
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Specifications
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Synonym | Dipotassium hydrogenphosphate |
| Dipotassium phosphate |
| sec-Potassium phosphate |
Molecular Formula | K2HPO4 |
Molecular Weight | 174.18 |
CAS Number | 7758-11-4 |
assay | ≥98% |
total impurities | ≤0.001% Nitrogen compounds (as N) |
| ≤0.01% Insoluble matter |
loss ≤1.0% loss on drying | 105°C |
pH | 8.5-9.6 (25 °C 5% in solution) |
pKa (25 °C) | (1) 2.15 (2) 6.82 (3) 12.38 (phosphoric acid) |
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