IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Sodium formate with Sodium thiocyanate

Components:
   (1) Sodium formate; NaCHO2; [141-53-7]  NIST Chemistry WebBook for detail
   (2) Sodium thiocyanate; NaCNS; [540-72-7]  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:
   P. Baldini

Experimental Remarks:

   Note 1: There is one eutectic: at 170 ºC and 100x2 = 36.
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
235508  10
210483  20
182455  30
186459  40
215488  50
240513  60
259532  70
280553  80
295568  90
308581100
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 NaCHO2 and chemically pure NaCNS 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.