| Melting point | 340 °C (lit.) |
| Boiling point | 122 °C (1 mmHg) |
| density | 2.3 g/mL at 25 °C (lit.) |
| vapor density | 4.9 (vs air) |
| vapor pressure | 1 mm Hg ( 384 °C) |
| refractive index | 1.433-1.436 |
| Fp | 340-360°C |
| storage temp. | no restrictions. |
| solubility | Soluble in sulfuric acid. Insoluble in acetone and ammonia. |
| form | Very Deliquescing Powder |
| color | White |
| Specific Gravity | 2.39 |
| Odor | Pungent odour |
| PH | 1 (5g/l, H2O, 20℃) |
| PH Range | <2 |
| Water Solubility | Soluble in sulfuric acid. Insoluble in acetone and ammonia. Decomposes in water. |
| Sensitive | Moisture Sensitive |
| Merck | 14,7355 |
| Sublimation | 340-360 ºC |
| Stability: | Stability Stable, but reacts violently with water, alcohols, metals, sodium, potassium, ammonia, oxidizing agents, HF, peroxides, magnesium, strong bases. |
| InChIKey | YWEUIGNSBFLMFL-UHFFFAOYSA-N |
| CAS DataBase Reference | 1314-56-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Diphosphorus pentoxide(1314-56-3) |
| EPA Substance Registry System | Phosphorus pentoxide (1314-56-3) |
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