IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Calcium nitrate and Water

Components:
   (1) Calcium nitrate; Ca(NO3)2; [10124-37-5]  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:
   Onda, K.; Sada, E; Kobayashi, T.; Kito, S.; Ito, K., J. Chem. Eng. Jpn 1970, 3, 18-24.

Variables:
   Temperature = 298.15 K
   Pressure = 298.15 K
   Concentration = c₂/mol L^-1 = 0 - 2.110

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	Concentration C₂ [mol/L]	α	α Note
298.15	0	0.7595	a
298.15	0.304	0.6847	a
298.15	0.701	0.5993	a
298.15	1.340	0.4810	a
298.15	1.619	0.4356	a
298.15	2.110	0.3647	a

Notes:
   ^a  α = Bunsen coefficient [cm³ (STP) cm^-3 atm^-1].

Method/Apparatus/Procedure:
   Solutions made up by weight and density measured but not reported in paper. Equilibrium established between a measured volume of gas and a measured amount of gas-free liquid in a cell fitted with a magnetic stirrer. Amount of gas absorbed estimated from change in volume of gas. Details in source.

Source and Purity of Materials:
   (1) Commercial sample, minimum purity 99.8 mole %.
   (2) Analytical grade.
   (3) Distilled and degassed.

Estimated Errors:
   Solubility: δα = ± 2 % (estimated by the compiler)
   Temperature: δT/K = ± 0.2 (estimated by compiler)