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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Ammonium chloride and Water
Components:
(1) Ammonium chloride; NH4Cl; [12125-02-9]
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:
Findlay, A.; Shen, B., J. Chem. Soc. 1912, 101, 1459-68.
Variables:
Temperature = 298.15 K
Concentration = 10
2
γ2
/g cm
-3
= 2.35 - 17.09
Prepared By:
C.L. Young
Experimental Remarks:
Solubility in water: Ostwald coefficient
L
= 0.825 cm
3
cm
-3
.
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
T/K
Pressure [atm]
Pressure Note
Density ρ [g/cm
3
]
Keunen coefficient, S
S Note
Mole Fraction (x
1
)
x
1
Note
10
2
* γ [g/cm
3
]
γ Note
298.15
1
c
1.005
0.791
b
5.92
c
2.35
a
298.15
1
c
1.013
0.754
b
5.70
c
5.05
a
298.15
1
c
1.022
0.732
b
5.61
c
8.24
a
298.15
1
c
1.027
0.712
b
5.49
c
10.02
a
298.15
1
c
1.045
0.665
b
5.29
c
17.09
a
Notes:
a
γ = mass concentration of salt
b
S
= concentration of gas in liquid phase/concentration of gas in gaseous phase
Solubility was stated to be independent of pressure (over 1-2 atm pressure range); value quoted is the mean.
c
Calculated by the compiler assuming
V
m,1
= 24.3 x 10
-3
m
3
mol
-1
at 1 atm.
Method/Apparatus/Procedure:
Gas buret and absorption pipet. Manometer tube was of such length as to allow measurements up to 2 x 10
5
Pa (about 2 atm).
Source and Purity of Materials:
(1) Purity 99.95 mole %.
(2) No details given.
(3) No details given.
Estimated Errors:
Solubility: δS = ± 1 % (estimated by the compiler)
Temperature: δ
T
/K = ± 0.1 (estimated by compiler)