IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Magnesium nitrate and Water

Components:
   (1) Magnesium nitrate; Mg(NO3)2; [10377-60-3]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Yasunishi, A.; Yoshida, F., J. Chem. Eng. Data 1979, 24, 11-14.

Variables:
   Temperature = 298.15 K
   Pressure = 101.325 kPa
   Concentration = c₂/mol L^-1 = 0 - 3.372

Prepared By:
   C.L. Young

Experimental Remarks:

   P = 1 atm = 101.325 kPa = 1.01325 bar

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)


T/K	Ostwald coefficient L	Ostwald Note	Concentration C₂ [mol/L]
298.15	0.8264	a	0
298.15	0.7771	a	0.203
298.15	07435	a	0.364
298.15	0.7328	a	0.415
298.15	0.6873	a	0.636
298.15	0.6129	a	1.003
298.15	0.6112	a	1.007
298.15	0.5975	a	1.076
298.15	0.5805	a	1.158
298.15	0.5765	a	1.170
298.15	0.5463	a	1.350
298.15	0.4801	a	1.746
298.15	0.4508	a	1.925
298.15	0.4186	a	2.186
298.15	0.3656	a	2.587
298.15	0.3253	a	2.930
298.15	0.2796	a	3.372

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. Density and composition of solution determined after absorption. Details in Ref. 1.

Source and Purity of Materials:
   (1) High purity grade sample, purity 99.96 mole %.
   (2,3) Guaranteed reagent, solution degassed by boiling.

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

References:
   1. Tokunaga, J., J. Chem. Eng. Data 1975, 20, 41.