IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Lithium formate with Formic acid

Components:
   (1) Formic acid; CH2O2; [64-18-6]  NIST Chemistry WebBook for detail
   (2) Lithium formate; LiCHO2; [556-63-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Kendall, J.; Adler, H., J. Am. Chem. Soc. 43, 1470 (1921).

Variables:
   Temperature = -25.0 ºC to 163.5 ºC.

Prepared By:
   T. A. Ageyeva

Experimental Data:   (Notes on the Nomenclature)
  
The solubility of lithium formate in formic acid.
t/°C100 * Mole Fraction1Solid Phase(s)
8.40.0CH2O2
7.01.59CH2O2
5.23.47CH2O2
3.25.33CH2O2
1.17.09CH2O2
-1.38.93CH2O2
-3.510.75CH2O2
-5.612.23CH2O2
-8.213.99CH2O2
-14.618.19CH2O2
-17.119.56CH2O2
-19.821.25CH2O2
-21.722.24CH2O2
-23.523.49CH2O2
-25.024.33CH2O2
18.023.49LiCHO2
34.023.93LiCHO2
80.025.31LiCHO2
90.525.91LiCHO2
97.926.38LiCHO2
113.127.71LiCHO2
131.229.87LiCHO2
145.131.98LiCHO2
150.433.04LiCHO2
159.135.01LiCHO2
163.536.13LiCHO2
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 B2O3. It was then distilled in vacuo until a product melting above 281.6 K was obtained.

Estimated Errors:
   Solubility: Nothing is specified.
   Temperature: Nothing is specified.