Compilation - Lithium formate with Formic acid (IUPAC SDS Volume 73)
SDS Volume (4692)
Volume 73. Metal and Ammonium Formate Systems, p None
Original Measurements
Kendall, J.; Adler, H.; J. Am. Chem. Soc. 43, 1470 (1921).
Variables:
Room Temp: -25.0 - 163.5 °C
Prepared by:
Method/Apparatus/Procedure:
The only information given is that the solubility values were determined by the freezing point method.
Source and Purity of Materials:
- The lithium salt was prepared by dissolving the carbonate in 90% formic acid. The salt was dried at 373 K and purified by recrystallizing from alcohol and drying over sulfuric acid in a vacuum. Formic acid was prepared by treating a c.p. product with $\ce{B2O3}$. It was then distilled in vacuo until a product melting above 281.6 K was obtained.
Estimated Errors:
Ambient temperature: Nothing is specified.
Mass concentration (m/v) (1): Nothing is specified.
Components:
- Lithium formate, $\ce{ LiCHO2 }$; [556-63-8] NIST WebBook
- Formic acid, $\ce{ CH2O2 }$; [64-18-6] NIST WebBook
Experimental Data
The solubility of lithium formate in formic acid.
| $T$ (°C) | $100 x_{1}$ | Phase (s) () |
|---|---|---|
| 8.4 | 0.0 | CH2O2 |
| 7.0 | 1.59 | CH2O2 |
| 5.2 | 3.47 | CH2O2 |
| 3.2 | 5.33 | CH2O2 |
| 1.1 | 7.09 | CH2O2 |
| -1.3 | 8.93 | CH2O2 |
| -3.5 | 10.75 | CH2O2 |
| -5.6 | 12.23 | CH2O2 |
| -8.2 | 13.99 | CH2O2 |
| -14.6 | 18.19 | CH2O2 |
| -17.1 | 19.56 | CH2O2 |
| -19.8 | 21.25 | CH2O2 |
| -21.7 | 22.24 | CH2O2 |
| -23.5 | 23.49 | CH2O2 |
| -25.0 | 24.33 | CH2O2 |
| 18.0 | 23.49 | LiCHO2 |
| 34.0 | 23.93 | LiCHO2 |
| 80.0 | 25.31 | LiCHO2 |
| 90.5 | 25.91 | LiCHO2 |
| 97.9 | 26.38 | LiCHO2 |
| 113.1 | 27.71 | LiCHO2 |
| 131.2 | 29.87 | LiCHO2 |
| 145.1 | 31.98 | LiCHO2 |
| 150.4 | 33.04 | LiCHO2 |
| 159.1 | 35.01 | LiCHO2 |
| 163.5 | 36.13 | LiCHO2 |
