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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
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 100x
2
= 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/°C
T/K
Mole Fraction
2
255
528
0
235
508
10
210
483
20
182
455
30
186
459
40
215
488
50
240
513
60
259
532
70
280
553
80
295
568
90
308
581
100
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 NaCHO
2
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.