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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Phenothiazine with Thianthrene
Components:
(1) Phenothiazine; C12H9NS; [92-84-2]
NIST Chemistry WebBook
for detail
(2) Thianthrene; C12H8S2; [92-85-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Cullinane, N.M.; Rees, W.T., Trans. Faraday Soc. 1940, 36, 506-514.
Variables:
Temperature = Temperature
Prepared By:
W.E. Acree, Jr.
Experimental Data:
(Notes on the Nomenclature)
Initial Temperature (T
In
)
Final Temperature (T
Fin
)
Mole Fraction x
1
Mole Fraction x
2
429.9
429.1
0.000
1.000
426.4
414.7
0.094
0.906
422.7
406.0
0.162
0.838
418.0
402.6
0.260
0.740
409.0
403.2
0.382
0.618
407.6
403.2
0.441
0.559
424.5
403.3
0.561
0.439
437.8
402.7
0.709
0.291
451.7
404.4
0.894
0.106
455.4
421.2
0.959
0.041
457.6
456.8
1.000
0.000
Notes:
a
Phase diagram, given in the original paper, shows formation of a partial series of solid solutions having compositions from circa x
1
= 0.00 to x
1
= 0.20 and from x
1
= 0.89 to x
1
= 1.00. T
in
refers to the temperature at which crystallization begins; T
fin
is the temperature at which crystallization of the solid solution concludes.
Method/Apparatus/Procedure:
Mixtures were placed in small capillary tubes. Temperature was slowly varied with ample time given for equilibration. Transition temperatures determined by visual observations. Reported temperatures verified by repetitive measurements.
Source and Purity of Materials:
(1) Purity and chemical source were not specified in paper, was sublimed and recrystallized from alcohol.
(2) Purity and chemical source were not specified in paper, was purified by sublimation and recrystallized from acetone.
Estimated Errors:
Temperature: T/K: ± precision 0.2 (compiler). x
1
: ± 0.002 (compiler).