| Melting point | 1067 °C |
| Boiling point | 1689 °C |
| density | 2.47 |
| vapor density | 9.3 (vs air) |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 0.5 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 2.477 |
| color | White |
| PH | 3.2 (50g/l, H2O, 20℃) |
| PH Range | 2.5 - 4.5 |
| Odor | Odorless |
| Water Solubility | 5 g/100 mL (20 ºC) |
| Merck | 14,7656 |
| Exposure limits | ACGIH: TWA 0.1 mg/m3 |
| Stability: | Stable. Strong oxidizer. Incompatible with strong reducing agents, organic materials, combustible materials. |
| InChIKey | USHAGKDGDHPEEY-UHFFFAOYSA-L |
| LogP | -1 at 20℃ |
| CAS DataBase Reference | 7727-21-1(CAS DataBase Reference) |
| EPA Substance Registry System | Potassium persulfate (7727-21-1) |
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