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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Barium formate with Water
Components:
(1) Barium formate; Ba(CHO2)2; [541-43-5]
NIST Chemistry WebBook
for detail
(2) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Krasnitzki, E. R.,Monatsh. Chem. 8, 595 (1887).
Variables:
Temperature = 1 ºC to 76 ºC
Prepared By:
Chr.Balarew
Experimental Remarks:
Author's Comments:
The solubility data (g/100g H
2
O) are mean values obtained by the cooling and the heating method.
Experimental Data:
(Notes on the Nomenclature)
(Please see footnotes following the table(s).)
Solubility of barium formate in water.
t/°C
g
1
/g
2
Phase
Mass Fraction w
1
a
m
1
[mol kg-1]
Solid Phase(s)
b
1
27.76
Liquid
21.72
1.220
A
22.5
30.46
Liquid
23.34
1.339
A
38
34.35
Liquid
25.56
1.510
A
54
38.24
Liquid
27.66
1.681
A
63.6
39.44
Liquid
28.28
1.734
A
76
39.93
Liquid
28.53
1.755
A
Notes:
a
These values and the molality values were calculated by the compiler.
b
The solid phase is: A=Ba(CHO
2
)
2
.
Method/Apparatus/Procedure:
The apparatus and method were described earlier.
1
The mixtures were shaken for 10-1.5 hours. Dilute sulfuric acid was added to a weighed sample. The mixture was evaporated on a water bath. The remaining sulfuric acid was driven off by heating to constant weight of barium sulfate.
Source and Purity of Materials:
Barium carbonate was dissolved in formic acid to form the barium formate. The crystals were analyzed.
Estimated Errors:
Solubility: The solubility is ± 0.2 g/100 g water.
References:
1
Raupenstrauch; Monatsh. Chem.
6
, 563 (1885).