IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Carbon dioxide with Ammonium chloride, Ammonium sulfate and Water

Components:
   (1) Ammonium chloride; NH4Cl; [12125-02-9]  NIST Chemistry WebBook for detail
   (2) Ammonium sulfate; (NH4)2SO4; [7783-20-2]  NIST Chemistry WebBook for detail
   (3) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (4) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Yasunishi, A.; Tsuji, M.; Sada, E., Adv. Chem. Ser. 1979, 177, 189-203.

Variables:
   Temperature = 298.15 K
   Pressure = 298.15 K
   Concentration = (c2)/mol dm-1 = 0 - 2.873

Prepared By:
   C.L. Young

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
  
T/KPressure [kPa]Ostwald coefficient LOstwald NoteConcentration C1 [mol/dm3]Concentration NoteMole Fraction (x2)x2 Note
298.15101.3250.8264a0(c2 + c3)0in mixed salt
298.15101.3250.7378a0.253(c2 + c3)0in mixed salt
298.15101.3250.6572a0.519(c2 + c3)0in mixed salt
298.15101.3250.5794a0.845(c2 + c3)0in mixed salt
298.15101.3250.4978a1.235(c2 + c3)0in mixed salt
298.15101.3250.3952a1.836(c2 + c3)0in mixed salt
298.15101.3250.3161a2.486(c2 + c3)0in mixed salt
298.15101.3250.2802a2.873(c2 + c3)0in mixed salt
298.15101.3250.7505a0.282(c2 + c3)0.25in mixed salt
298.15101.3250.6785a0.573(c2 + c3)0.25in mixed salt
298.15101.3250.5961a0.998(c2 + c3)0.25in mixed salt
298.15101.3250.5322a1.396(c2 + c3)0.25in mixed salt
298.15101.3250.4580a1.946(c2 + c3)0.25in mixed salt
298.15101.3250.4015a2.433(c2 + c3)0.25in mixed salt
298.15101.3250.3687a2.806(c2 + c3)0.50in mixed salt
298.15101.3250.7568a0.333(c2 + c3)0.50in mixed salt
298.15101.3250.6997a0.658(c2 + c3)0.50in mixed salt
298.15101.3250.6460a1.021(c2 + c3)0.50in mixed salt
298.15101.3250.5959a1.330(c2 + c3)0.50in mixed salt
298.15101.3250.5223a2.014(c2 + c3)0.50in mixed salt
298.15101.3250.4578a2.673(c2 + c3)0.75in mixed salt
298.15101.3250.7905a0.254(c2 + c3)0.75in mixed salt
298.15101.3250.7451a0.601(c2 + c3)0.75in mixed salt
298.15101.3250.6978a1.018(c2 + c3)0.75in mixed salt
298.15101.3250.6594a1.414(c2 + c3)0.75in mixed salt
298.15101.3250.6133a1.985(c2 + c3)0.75in mixed salt
298.15101.3250.5800a2.400(c2 + c3)0.75in mixed salt
298.15101.3250.5524a2.861(c2 + c3)1.00in mixed salt
298.15101.3250.7658a0.375(c2 + c3)1.00in mixed salt
298.15101.3250.7704a0.811(c2 + c3)1.00in mixed salt
298.15101.3250.7460a1.147(c2 + c3)1.00in mixed salt
298.15101.3250.7328a1.508(c2 + c3)1.00in mixed salt
298.15101.3250.7102a1.973(c2 + c3)1.00in mixed salt
298.15101.3250.6915a2.338(c2 + c3)1.00in mixed salt
298.15101.3250.6721a2.816(c2 + c3)1.00in mixed salt
Notes:
   a  L = Ostwald coefficient [cm3 cm-3]

Method/Apparatus/Procedure:
   Volumetric apparatus with multibulb buret and magnetic stirrer. Amount of solution and gas absorbed determined volumetrically. Partial pressure determined from total pressure and vapor pressure of solution. The vapor pressure of the mixed salt solution estimated by the method of Robinson and Bower (1) from corresponding data for each component salt solution. Apparatus similar to that described in Ref. 2.

Source and Purity of Materials:
   (1) Extra pure grade, purity 99.96 mole %.
   (2,3) Reagent grade.
   (4) Deionized.

Estimated Errors:
   Solubility: δL = ± 1%
   Temperature: δT/K = ± 0.05

References:
   1. Robinson, R.A.; Bower, V.E., J. Res. Nat. Bur. Stand. 1965, 69A, 365.
   2. Tokunaga, J., J. Chem Eng. Data 1975, 20, 41.