| Identification | |
| Name: | Diphosphonic acid |
| Synonyms: | Pyrophosphonicacid |
| CAS: | 52997-55-4 |
| Molecular Formula: | H4O5 P2 |
| Molecular Weight: | 0 |
| InChI: | InChI=1S/O5P2/c1-6(2)5-7(3)4/p+2 |
| Molecular Structure: |  |
| Properties | |
| Flash Point: | °C |
| Boiling Point: | °Cat760mmHg |
| Density: | g/cm3 |
| Flash Point: | °C |
| Safety Data | |
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