| Product Name | Pyrophosphoric acid |
| CAS No. | 2466-09-3 |
| Synonyms | Pyrophosphoric acid syrupy; diphosphoric acid |
| InChI | InChI=1/H4O7P2/c1-8(2,3)7-9(4,5)6/h(H2,1,2,3)(H2,4,5,6) |
| Molecular Formula | H4P2O7 |
| Molecular Weight | 177.97 |
| Melting point | 61℃ |
| Hazard Symbols |  C:Corrosive; |
| Risk Codes | R34:; |
| Safety | S26:; S36/37/39:; S45:; |
2466-09-3 pyrophosphoric acid
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