System: sulfurous acid diammonium salt/ammonia/water/sulfuric acid disodium salt/sulfurous acid disodium salt
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| 1) sulfurous acid diammonium salt |
| DECHEMA ID | 676 |
| Formula | H8N2O3S |
| Synonym | diammonium sulfite |
| Synonym | ammonium sulfite (2:1) |
| InChi-Key | PQUCIEFHOVEZAU-UHFFFAOYSA-N |
| Registry No. | 10196-04-0 |
| 2) ammonia |
| DECHEMA ID | 40784 |
| Formula | H3N |
| Synonym | R 717 |
| Synonym | ammonia, anhydrous |
| Synonym | freon 717 |
| Synonym | nh3 |
| Synonym | spirit of hartshorn |
| Synonym | refrigerant 717 |
| Synonym | ammonia, gas |
| InChi-Key | QGZKDVFQNNGYKY-UHFFFAOYSA-N |
| Registry No. | 7664-41-7 |
| 3) water |
| DECHEMA ID | 41137 |
| Formula | H2O |
| Synonym | refrigerant 718 |
| Synonym | ice |
| Synonym | dihydrogen oxide |
| Synonym | hydrogen oxide |
| InChi-Key | XLYOFNOQVPJJNP-UHFFFAOYSA-N |
| Registry No. | 7732-18-5 |
| 4) sulfuric acid disodium salt |
| DECHEMA ID | 41187 |
| Formula | Na2O4S |
| Synonym | sodium sulfate (Na2SO4) |
| Synonym | sodium sulfate |
| Synonym | sodium sulphate |
| Synonym | disodium sulfate |
| Synonym | salt cake |
| InChi-Key | PMZURENOXWZQFD-UHFFFAOYSA-L |
| Registry No. | 7757-82-6 |
| 5) sulfurous acid disodium salt |
| DECHEMA ID | 41188 |
| Formula | Na2O3S |
| Synonym | sodium sulfite |
| Synonym | sodina sulfite |
| Synonym | disodium sulfite |
| Synonym | sodium sulphite |
| InChi-Key | GEHJYWRUCIMESM-UHFFFAOYSA-L |
| Registry No. | 7757-83-7 |
Available physical property data:
| Property | Phase | No. of tables | No. of lines | Data |
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| solid-liquid equilibrium | - | 1 | 1 | View |
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| solubility | - | 1 | 3 | View |
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