System: diphosphoric acid tetrasodium salt/water/diphosphoric acid disodium salt
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| 1) diphosphoric acid tetrasodium salt |
| DECHEMA ID | 41100 |
| Formula | Na4O7P2 |
| Synonym | sodium pyrophosphate |
| Synonym | tetrasodium pyrophosphate |
| Synonym | tetrasodium diphosphate |
| Synonym | sodium phosphate (Na4P2O7) |
| InChi-Key | FQENQNTWSFEDLI-UHFFFAOYSA-J |
| Registry No. | 7722-88-5 |
| 2) water |
| DECHEMA ID | 41137 |
| Formula | H2O |
| Synonym | hydrogen oxide |
| Synonym | dihydrogen oxide |
| Synonym | ice |
| Synonym | refrigerant 718 |
| InChi-Key | XLYOFNOQVPJJNP-UHFFFAOYSA-N |
| Registry No. | 7732-18-5 |
| 3) diphosphoric acid disodium salt |
| DECHEMA ID | 41199 |
| Formula | H2Na2O7P2 |
| Synonym | disodium dihydrogen diphosphate |
| Synonym | diphosphoric acid sodium salt (1:2) |
| Synonym | pyrophosphoric acid sodium salt (1:2) |
| Synonym | disodium dihydrogen pyrophosphate |
| InChi-Key | GYQBBRRVRKFJRG-UHFFFAOYSA-L |
| Registry No. | 7758-16-9 |
Available physical property data:
| Property | Phase | No. of tables | No. of lines | Data |
|---|
| solid-liquid equilibrium | - | 1 | 79 | View |
|---|
| solubility | - | 1 | 158 | View |
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