System: sulfurous acid dipotassium salt/water/sulfurous acid
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| 1) sulfurous acid dipotassium salt |
| DECHEMA ID | 520 |
| Formula | K2O3S |
| Synonym | potassium sulfite |
| Synonym | dipotassium sulfite |
| InChi-Key | BHZRJJOHZFYXTO-UHFFFAOYSA-L |
| Registry No. | 10117-38-1 |
| 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) sulfurous acid |
| DECHEMA ID | 41320 |
| Formula | H2O3S |
| InChi-Key | LSNNMFCWUKXFEE-UHFFFAOYSA-N |
| Registry No. | 7782-99-2 |
Available physical property data:
| Property | Phase | No. of tables | No. of lines | Data |
| solid-liquid equilibrium | - | 1 | 8 | View |
| solubility | - | 1 | 8 | View |