IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Ammonium dihydrogenphosphate with Ammonium chloride, Potassium dihydrogenphosphate, Potassium chloride and Water

   (1) Ammonium chloride; NH4Cl; [12125-02-9]  NIST Chemistry WebBook for detail
   (2) Ammonium dihydrogenphosphate; NH4H2PO4; [7722-76-1]  NIST Chemistry WebBook for detail
   (3) Potassium chloride; KCl; [7747-40-7]  NIST Chemistry WebBook for detail
   (4) Potassium dihydrogenphosphate; KH2PO4; [7778-77-0]  NIST Chemistry WebBook for detail
   (5) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

   J. Eysseltová; Charles University; Prague, Czech Republic (September 1995)

Critical Evaluation:

8.4. NH4+, K+ || H2PO4, Cl - H2O

          The NH4+, K+ || H2PO4, Cl - H2O system has been studied either in broader extent1,3 or in terms of the diagonal NH4H2PO4 - KCl - H2O.2,4 Formation of solid solutions between both dihydrogenphosphates and chlorides is the prominent feature of this system. The data in the different reports cannot be compared with each other because of different experimental conditions. The phase diagram of Ref. 2 - see Fig. 26 - can be accepted tentatively.

Experimental Data:   (Notes on the Nomenclature)

View Figure 1 for this Evaluation

View Figure 1 for this Evaluation

References: (Click a link to see its experimental data associated with the reference)

   1  Askenasy, P.; Nessler, F., F.Z. Anorg. Chem. 189, 305 (1930).
   2  Polosin, V.A.; Shakhparonov, M.I., Zh. Fiz. Khim. 21, 119 (1947).
   3  Iovi, A.; Haiduc, C., Rev. Roum. Chim. 16, 1743 (1971).
   4  Fokina, Z.N.; Kornishina, E.N.; Kim, P.P., Tekhnologiya Mineral'nykh Udobreniy (Leningrad) 63 (1977).