System: phosphorus oxide (P2O5)/phosphoric acid monosodium salt/water/diphosphoric acid disodium salt

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1) phosphorus oxide (P2O5)
DECHEMA ID5926
FormulaO5P2
Synonymphosphorus-V-oxide
Synonymphosphorous pentoxide
Synonymphosphorus pentoxide
Synonymphosphoric anhydride (P2O5)
Synonymphosporous oxide (P2O5)
InChi-KeyYWEUIGNSBFLMFL-UHFFFAOYSA-N
Registry No.1314-56-3
2) phosphoric acid monosodium salt
DECHEMA ID40369
FormulaH2NaO4P
Synonymsodium dihydrogen phosphate
Synonymsodium dihydrogen orthophosphate
Synonymsodium dihydrogenphosphate
InChi-KeyAJPJDKMHJJGVTQ-UHFFFAOYSA-M
Registry No.7558-80-7
3) water
DECHEMA ID41137
FormulaH2O
Synonymhydrogen oxide
Synonymdihydrogen oxide
Synonymice
Synonymrefrigerant 718
InChi-KeyXLYOFNOQVPJJNP-UHFFFAOYSA-N
Registry No.7732-18-5
4) diphosphoric acid disodium salt
DECHEMA ID41199
FormulaH2Na2O7P2
Synonymdisodium dihydrogen diphosphate
Synonymdiphosphoric acid sodium salt (1:2)
Synonympyrophosphoric acid sodium salt (1:2)
Synonymdisodium dihydrogen pyrophosphate
InChi-KeyGYQBBRRVRKFJRG-UHFFFAOYSA-L
Registry No.7758-16-9

Available physical property data:

PropertyPhaseNo. of tablesNo. of linesData
solid-liquid equilibrium-215View
solubility-230View