IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Sodium formate with Sodium nitrate
Components:
   (1) Sodium formate; NaCHO2; [141-53-7]  NIST Chemistry WebBook for detail
   (2) Sodium nitrate; NaNO3; [7631-99-4]  NIST Chemistry WebBook for detail
Original Measurements:
   Tsindrik, N.M., Zh. Obshch. Khim. 28, 830-4 (1958).

 Variables:


Prepared By:
   G. D'Andrea

 Experimental Remarks:
   Note: There is a eutectic at 187 ºC and 100x2 = 48.

 Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)   
t/°CT/KMole Fraction2
258531  0
252525  5
24551910
23650915
22649920
21949225
21248530
20447735
19646940
18846145
19246550
210483  55
226499  60
240513  65
250523  70
260533  75
270543  80
278551  85
288561  90
198571  95
308581100
 Notes:
   a  The T/K values were calculated the compiler.

 Method/Apparatus/Procedure:
   A visual polythermal method was used. The salts were melted in a test tube and hand stirred. The temperatures were measured with a Nichrome-Constantan thermouple.

 Source and Purity of Materials:
   Analytical grade materials were recrystallized twice. Component (1) undergoes a solid state transition at 242 °C1. Component (2) undergoes a solid state transition at 275 °C.

 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 Nauchn. Konf. S.M.I. (1956).