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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Lithium formate with Formic acid and Water
Components:
(1) Formic acid; CH2O2; [64-18-6]
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:
Shklovskaya, R.M.; Arkhipov, S.M.; Tsibulevskaya, K.A.; Kidyarov, B.I.; Kuzina, V.A., Zh. Neorg. Khim. 22, 2027 (1977).
Variables:
Concentration = Composition at 25ºC
Prepared By:
T. A. Ageyeva
Experimental Data:
(Notes on the Nomenclature)
(Please see footnotes following the table(s).)
Solubility values in the LiCHO
2
-CH
2
O
2
-H
2
O system at 25ºC.
Chemical
1
Mass Fraction w
1
10
0
* Mole Fraction
1
a
Chemical
2
Mass Fraction w
2
Mole Fraction
2
a
Chemical
3
Mass Fraction w
3
Mole Fraction
3
a
Solid Phase(s)
b
LiCHO2
30.54
13.23
CH2O2
0
0
H2O
69.46
86.77
A
LiCHO2
28.40
12.50
CH2O2
4.38
2.18
H2O
67.22
85.32
A
LiCHO2
28.09
12.90
CH2O2
10.09
5.23
H2O
61.82
81.87
A
LiCHO2
26.69
12.57
CH2O2
14.62
7.77
H2O
58.69
79.66
A
LiCHO2
25.28
12.22
CH2O2
19.29
10.53
H2O
55.43
77.25
A
LiCHO2
24.75
12.24
CH2O2
22.48
12.55
H2O
52.77
75.21
A
LiCHO2
24.09
12.13
CH2O2
25.32
14.40
H2O
50.59
73.47
A
LiCHO2
23.86
12.50
CH2O2
29.90
17.68
H2O
46.24
69.82
A
LiCHO2
23.84
13.14
CH2O2
35.38
22.03
H2O
40.78
64.83
A
LiCHO2
23.25
13.41
CH2O2
40.58
26.43
H2O
36.17
60.16
A
LiCHO2
22.88
13.53
CH2O2
43.38
28.96
H2O
33.74
57.51
A
LiCHO2
23.02
14.57
CH2O2
49.58
35.42
H2O
27.40
50.50
A
LiCHO2
23.43
15.49
CH2O2
52.97
35.53
H2O
23.60
44.98
A
LiCHO2
23.56
16.05
CH2O2
55.37
42.57
H2O
21.07
41.38
A
LiCHO2
25.43
18.35
CH2O2
58.04
47.26
H2O
16.53
34.39
A
LiCHO2
26.21
19.38
CH2O2
59.11
49.33
H2O
14.68
31.29
A
LiCHO2
27.46
21.65
CH2O2
62.55
55.65
H2O
9.99
22.70
A + B
LiCHO2
23.53
19.30
CH2O2
69.58
64.41
H2O
6.89
16.29
B
LiCHO2
25.91
23.18
CH2O2
72.81
73.52
H2O
1.28
3.30
B
Notes:
a
These values were calculated by the compilers.
b
The solid phases are: A = LiCHO
2
•H
2
O; B = LiCHO
2
.
Method/Apparatus/Procedure:
The isothermal method was used. One month was allowed for equilibration.
Source and Purity of Materials:
Commercial c.p. grade LiCHO
2
was used (m.p. = 553.2 K). It was dehydrated at 393.2 K. Commercial a.r. grade formic acid was used. Source and purity of water are not specified.
Estimated Errors:
Temperature: The temperature was controlled to within ± 0.1 K.