SDS Volume
Volume 73. Metal and Ammonium Formate Systems, p None
Source Publication
Davidson, A. W.; Holm, V.; J. Am. Chem. Soc. 53, 1350 (1931).
Conditions:
Room Temp: 308, 315, 322 and 325 $\pu{K}$
Compiler:
Methodology:
The solubility values were measured by using the freezing point method.
Sample Information:
- The copper salt was formed by dissolving the basic carbonate in 50% formic acid, and heating to expel the $\ce{CO2}$. Crystals separated as the mixture cooled. The crystals were pressed between porous tiles and dried at 348 K for 10 hrs; the purity is not specified. Formic acid was prepared by treating 90% formic acid with $\ce{B2O3}$ and distilling in vacuo; MP = 281.5-281.7 K.
Measurement Errors:
Ambient temperature: The temperature was controlled to within ±0.5 K.
Mass concentration (m/v) (1): No information is given.
Methodology Citation
1 Davidson, A. W.; McAllister, W. H.; J. Am. Chem. Soc. 52, 507 (1930).
System Components:
- Copper (II) formate, $\ce{ Cu(CHO2)2 }$; [544-19-4] NIST WebBook
- Formic acid, $\ce{ CH2O2 }$; [64-18-6] NIST WebBook
Experimental Data
| $T$ (°C) | $100 x_{1}$ |
|---|---|
| 25 | 4 x 10-3a |
| 35 | 4.5 x 10-3 |
| 42 | 4.8 x 10-3 |
| 49 | 6.6 x 10-3 |
| 52 | 7.5 x 10-3 |
(a) This value was determined by extrapolation. The solid phase could not be obtained in sufficient quantity for analysis.
