| Product Name | Polyphosphoric acid |
| CAS No. | 8017-16-1 |
| Synonyms | Polyphosphoric acids; Superphosphoric Acid; PolyphosphoricacidPOviscousliq; Tetraphosphoric acid; PPA |
| Molecular Formula | (H)n+2・(P)n・(O)3n+1 |
| Molecular Weight | 337.93 |
| Density | 2.06 |
| Melting point | 16℃ |
| Boiling point | 300℃ |
| Water solubility | MAY DECOMPOSE |
| Hazard Symbols |  C:Corrosive; |
| Risk Codes | R34:; |
| Safety | S25:; S36/37/39:; S45:; |
8017-16-1 polyphosphoric acid
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