Home
Introduction
Search Menu
IUPAC Series (PDF)
Reference
Version History
About the Project
Disclaimer
Contact Us
Acknowledgements
IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Lithium formate with Strontium formate, Barium formate and Water
Components:
(1) Barium formate; Ba(CHO2)2; [541-43-5]
NIST Chemistry WebBook
for detail
(2) Lithium formate; LiCHO2; [556-63-8]
NIST Chemistry WebBook
for detail
(3) Strontium formate; Sr(CHO2)2; [592-89-2]
NIST Chemistry WebBook
for detail
(4) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Itkina, L.S.; Portnova, S.M., Zh. Neorg. Khim. 25, 1109 (1980).
Variables:
Temperature = range of 25 ºC to 50 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).)
Part 1. Solubility values in the LiCHO
2
-Sr(CHO
2
)
2
-H
2
O system.
t/°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
25
LiCHO2
Liquid
27.46
7.388
Sr(CHO2)2
1.01
0.079
A
50
LiCHO2
Liquid
34.62
10.70
Sr(CHO2)2
3.11
0.281
A
Part 2. Solubility values in the LiCHO
2
-Ba(CHO
2
)
2
-H
2
O system
t/°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
25
LiCHO2
Liquid
21.86
5.870
Ba(CHO2)2
6.47
0.397
B
50
LiCHO2
Liquid
33.14
10.77
Ba(CHO2)2
7.66
0.569
B
Notes:
a
The solid phases are: A = LiCHO
2
•H
2
O + Sr (CHO
2
)
2
•2H
2
O; B = LiCHO
2
•H
2
O + Ba(CHO
2
)
2
.
Method/Apparatus/Procedure:
The isothermal method was used. Three weeks were allowed for equilibration. The lithium content of both phases was determined by flame photometry in the presence of 0.1 M Al(NO
3
)
3
.
1
) Sr
2+
was determined complexometrically. To determine Ba
2+
the total CHO
2
-
content was determined by titration with alkali
2
and the Ba
2+
content was calculated by difference. The composition of the solid phases was determined by Schreinemakers'method and controlled crystallo-optically.
Source and Purity of Materials:
The formates were prepared by neutralization of formic acid with the corresponding oxides, hydroxides or carbonates.
Estimated Errors:
Solubility: No information is given.
Temperature: No information is given.
References:
1
N. S. Poluektov, N.S.;
Methods of Flame-Photometrical Analysis
(Russ.), Moscow, Goskhimizdat, p. 132 (1959).
2
A. S. Molotkova and V. S. Zolotukhin, Zavodskaya Laboratoriya
15
, 1284 (1949).