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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Lithium formate with Cadmium formate and Water
Components:
(1) Cadmium formate; Cd(CHO2)2; [4464-23-7]
NIST Chemistry WebBook
for detail
(2) Lithium formate; LiCHO2; [556-63-8]
NIST Chemistry WebBook
for detail
(3) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Itkina, L.S.; Nadzharyan, K.A.; Lepeshkov, I.N., Zh. Neorg. Khim. 24, 2244 (1979).
Variables:
Concentration = Composition at 25 ºC
Prepared By:
Chr. Balarew and St. Trendafilova
Experimental Remarks:
The molality values were calculated by the compilers.
Experimental Data:
(Notes on the Nomenclature)
(Please see footnotes following the table(s).)
Solubility values in the LiCHO
2
-Cd(CHO
2
)
2
-H
2
O system at 25 °C.
Chemical
1
Phase
Mass Fraction w
1
m
1
[mol kg-1]
Chemical
2
Mass Fraction w
2
m
2
[mol kg-1]
Solid Phase(s)
a
LiCHO2
Liquid
---
---
Cd(CHO2)2
14.10
0.811
A
LiCHO2
Liquid
3.22
0.717
Cd(CHO2)2
10.38
0.594
A
LiCHO2
Liquid
6.38
1.450
Cd(CHO2)2
8.94
0.522
A
LiCHO2
Liquid
10.60
2.536
Cd(CHO2)2
8.96
0.550
A
LiCHO2
Liquid
15.37
4.012
Cd(CHO2)2
10.90
0.730
A
LiCHO2
Liquid
19.05
5.434
Cd(CHO2)2
13.48
0.987
A
LiCHO2
Liquid
23.01
7.375
Cd(CHO2)2
16.94
1.394
A
LiCHO2
Liquid
24.40
7.914
Cd(CHO2)2
16.26
1.354
A+B
LiCHO2
Liquid
26.03
7.935
Cd(CHO2)2
10.83
0.847
B
LiCHO2
Liquid
27.19
7.821
Cd(CHO2)2
5.90
0.436
B
LiCHO2
Liquid
27.59
7.659
Cd(CHO2)2
3.08
0.220
B
LiCHO2
Liquid
27.99
7.481
Cd(CHO2)2
---
---
B
Notes:
a
The solid phases are: A = Cd(CHO
2
)
2
•2H
2
O; B = LiCHO
2
•H
2
O.
Method/Apparatus/Procedure:
The isothermal method was used. The mixtures were placed in glass vessels in a thermostat and stirred mechanically. Equilibrium was reached in 1.5-2 weeks. The lithium content of both phases was determined by flame photometry. The cadmium content was determined complexometrically. The composition of the solid phases was determined by Schreinemakers' method.
Source and Purity of Materials:
LiCHO
2
•H
2
O was prepared by neutralizing 85% formic acid with p.a. grade LiOH. Cadmium formate was obtained from p.a. grade cadmium carbonate.
Estimated Errors:
Temperature: The temperature was kept constant to within ±0.05 °C.