IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Ammonium dihydrogenphosphate with Diammonium hydrogenphosphate and Water

   (1) Ammonium dihydrogenphosphate; NH4H2PO4; [7722-76-1]  NIST Chemistry WebBook for detail
   (2) Diammonium hydrogenphosphate; (NH4)2HPO4; [7783-28-0]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Flatt, R.; Brunisholz, G.; Dagon, R., Helv. Chim. Acta 1961, 44, 2173.


   Concentration = Composition and temperature

Prepared By:
   J. Eysseltová

Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)
Composition of eutonic solutions in the NH4H2PO4-(NH4)2HPO4-H2O system.
t/°CChemical1 Composition1 [g/11 g H2O](a)102 * Mass Fraction w1(b)m1 [mol/kg](b)Chemical2 Composition2 [g/100 g H2O](a)100 * Mass Fraction w2(b)m2 [mol/kg](b)Chemical3102 * Mass Fraction w3(b)
The compiler recalculated the data in the Table above to give the following values
Chemical1102 * Mass Fraction w1m1 [mol/kg]Chemical2102 * Mass Fraction w2m2 [mol/kg]Chemical3102 * Mass Fraction w3
   Table 1  a  The composition unit is g/100 g H2O.
   Table 1  b  These values were calculated by the compiler.

   No information is given.

Source and Purity of Materials:
   No information is given.

Estimated Errors:
   Solubility: No information is given.
   Temperature: No information is given.