IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Potassium formate with Potassium acetate
Components:
   (1) Potassium formate; KCHO2; [590-29-4]  NIST Chemistry WebBook for detail
   (2) Potassium acetate; KC2H3O2; [127-08-2]  NIST Chemistry WebBook for detail
Original Measurements:
   Sokolov, N.M., Zh. Obshch. Khim. 45, 1897-1902 (1965).

 Variables:


Prepared By:
   P. Baldini

 Experimental Remarks:
   Note: A eutectic is present at 151 ºC and 100x2 =13.

 Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)   
t/°CT/KMole Fraction2
167440    0
157430    5
154427  10
157430  15
168441  20 
179452  25
188461  30
199472  35
209482  40
217490  45
224497  50
232505  55
240513  60
249522  65
257530  70
266539   75
273546  80
282555  85
290563  90
297570  95
302575100
 Notes:
   a  The T/K values were calculated the compiler.

 Method/Apparatus/Procedure:
   A visual polythermal method was used.

 Source and Purity of Materials:
   No information is given. Component (1) undergoes phase transitions at 60, 135 and 157 °C. 1 Component (2) undergoes pohast transition at 58 and 150 °C.1

 Estimated Errors:
   Solubility: No information is given.
   Temperature: The compiler estimates the accuracy of the temperature measurements to be probably ± 2 K.

 References:
   1N. M. Sokolov, Tezisy Dokl. X Nauch. Konf. S.M.I. (1956).