IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Sodium formate with Sodium acetate
Components:
   (1) Sodium acetate; NaC2H3O2; [127-09-3]  NIST Chemistry WebBook for detail
   (2) Sodium formate; NaCHO2; [141-53-7]  NIST Chemistry WebBook for detail
Original Measurements:
   Sokolov, N.M., Zh. Obshch. Khim. 24, 1581-93 (1954).

 Variables:


Prepared By:
   P. Baldini

 Experimental Remarks:
   Note: There is a eutectic at 242 ºC and 100x2=10.5.

 Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)   
t/°CT/KMole Fraction2
258531  0
252525  5
24451710
24251510.5
25252515
26053320
26754025
27054330
27855135
28455740
29156445
296569  50
300573  55
303576  60
308581  65
313586  70
316589  75
320593  80
323596  85
326599  90
330603  95
331604100
 Notes:
   a  The T/K values were calculated the compiler.

 Method/Apparatus/Procedure:
   A visual polythermal method was used. The melts were contained in glass tubes and stirred. The temperatures were measured with a Nichrome-Constantan thermouple and a 17 mV full scale millivoltmeter. The temperature readings refer to the disappearance of isotropicity in the melt on cooling.

 Source and Purity of Materials:
   Component (1) was prepared by reacting aqueous "chemically pure" sodium carbonate with a slight excess of analytical grade formic acid.
Component (2) was "chemically pure" material.

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