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:
Calcium formate with Methanol
Components:
(1) Calcium formate; Ca(CHO2)2; [544-17-2]
NIST Chemistry WebBook
for detail
(2) Methanol; CH4O; [67-56-1]
NIST Chemistry WebBook
for detail
Original Measurements:
Henstock, H., J. Chem. Soc. 1340 (1934).
Variables:
Prepared By:
T. A. Ageyeva
Experimental Data:
(Notes on the Nomenclature)
(Please see footnotes following the table(s).)
Solubility of calcium formate in methanol
t/°C
Mass Fraction w
1
10
0
* Mole Fraction
1
a
15.0
0.27
0.07
66.6
0.23
0.06
Notes:
a
These values were calculated by the compiler.
Method/Apparatus/Procedure:
The isothermal solubility method was used to study the systems. The apparatus used for the solubility measurements at 288.2 K was similar to that described earlier.
1
At the boiling point, the solutions were prepared in a wide flask under reflux. To determine the quantity of solutes, portions of the saturated solutions were weighed at 288.2 K in a graduated pipette.
2
A filter thimble was used to separate undissolved salt.
3
Source and Purity of Materials:
The salt was either purchased as the purest obtainable or prepared from pure materials. Methanol was purified first by removing acetone.
4
Aldehyde was abstracted by treatment with iodine.
5
Distillation with concentrated sulfuric acid removed basic substances as well as most of the water.
6
Acidic substances were removed by distillation from caustic potash. The alcohol was finally distilled over metallic sodium; b.p. = 339.2 K at 758 mm.
Estimated Errors:
Temperature: The only information given is that the temperature varied within ± 0.1 °C.
References:
1
J. N. Brönsted and A. Petersen, J. Am. Chem. S.
43
, 2265 (1921).
2
F. D. Chattaway and W. J. Lambert, J. Chem. S.
107
, 1766 (1915).
3
T. J. Ward, Analyst
44
, 137 (1919).
4
R. C. Menzies, J. Chem. S.
121
, 2787 (1922).