IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Lithium formate with other formates (Na, K, Ca, Sr, Ba, Zn) and Formic acid
Components:
   (1) Potassium formate; KCHO2; [590-29-4]  NIST Chemistry WebBook for detail
   (2) Barium formate; Ba(CHO2)2; [541-43-5]  NIST Chemistry WebBook for detail
   (3) Calcium formate; Ca(CHO2)2; [544-17-2]  NIST Chemistry WebBook for detail
   (4) Formic acid; CH2O2; [64-18-6]  NIST Chemistry WebBook for detail
   (5) Lithium formate; LiCHO2; [556-63-8]  NIST Chemistry WebBook for detail
   (6) Sodium formate; NaCHO2; [141-53-7]  NIST Chemistry WebBook for detail
   (7) Strontium formate; Sr(CHO2)2; [592-89-2]  NIST Chemistry WebBook for detail
   (8) Zinc formate; Zn(CHO2)2; [557-41-5]  NIST Chemistry WebBook for detail
Original Measurements:
   Paul, R.C.; Puri, T.; Kapoor, R., Indian J. Chem. 13, 1061 (1975).

 Variables:

   Concentration = Composition at 25 ºC

 Prepared By:
   T. A. Ageyeva

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of metal formates in formic acid at 25ºC.
Chemical1Mass Fraction w1CH2O2100 * Mole Fraction1
LiCHO234.823.57
NaCHO246.523.94
KCHO254.022.81
Ca(CHO2)210.13.45
Sr(CHO2)228.36.83
Ba(CHO2)220.84.04
Zn(CHO2)24.91.43
 Method/Apparatus/Procedure:
   The isothermal method was used. Equilibrium was reached in 24 h. The analytical methods are not described.

 Source and Purity of Materials:
   The source and purity of the salts are not described. The formic acid was purified by the method of Wehman and Popov.1

 Estimated Errors:

   Temperature: The temperature was controlled to within ± 0.5 °C.

 References:
   1 T. C. Wehman and A. I. Popov, J. Phys. Chem. 72, 4031 (1968).