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:
   Storonkin, A.V.; Vasil’kova, I.V.; Potemin, S.S., Vestn. Leningr. Univ., Fiz. Khim. (10), 84-8 (1974).

 Variables:


Prepared By:
   G. D'Andrea

 Experimental Remarks:
   Note 1: There is one eutectic: at 176 ºC and 100x2 = 44.
Note 2: The data tabulated above were drawn by the compiler from Fig. 1 of the original paper.

 Experimental Data:   (Notes on the Nomenclature)
(Please see footnotes following the table(s).)   
t/°CT/KMole Fraction2
255528    0
232505  10
218491  20
202475  30
182455  40
190463  50
215488  60
234507  70
252525  80
276549  90
306579100
 Notes:
   a  The T/K values were calculated the compiler.

 Method/Apparatus/Procedure:
   The only information given is that a thermograph was used with a photorecorder and that the salt(s) were sealed under vacuum in Pyrex ampules.

 Source and Purity of Materials:
   Analytical grade NaHCO3 and chemically pure NaNO3 were heated 10-15 h at temperatures 50-60 °C below their fusion temperatures.

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