System: sulfurous acid monoammonium salt/water/sulfurous acid

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1) sulfurous acid monoammonium salt
DECHEMA ID671
FormulaH5NO3S
Synonymhydrogen sulfurous acid monoammonium salt
SynonymAmmonium bisulfite
Synonymammonium hydrogensulfite
Synonymammonium hydrogen sulfite
Synonymmonoammonium sulfite
Synonymammonium sulfite (1:1)
InChi-KeyZETCGWYACBNPIH-UHFFFAOYSA-N
Registry No.10192-30-0
2) water
DECHEMA ID41137
FormulaH2O
Synonymhydrogen oxide
Synonymdihydrogen oxide
Synonymice
Synonymrefrigerant 718
InChi-KeyXLYOFNOQVPJJNP-UHFFFAOYSA-N
Registry No.7732-18-5
3) sulfurous acid
DECHEMA ID41320
FormulaH2O3S
InChi-KeyLSNNMFCWUKXFEE-UHFFFAOYSA-N
Registry No.7782-99-2

Available physical property data:

PropertyPhaseNo. of tablesNo. of linesData
solid-liquid equilibrium-27View
solubility-27View