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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Naphthalene with n-Hexane
Components:
(1) n-Hexane; C6H14; [110-54-3]
NIST Chemistry WebBook
for detail
(2) Naphthalene; C10H8; [91-20-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Domanska, U. Polish J. Chem. 1981, 55, 1715-1720. (numerical values obtained through personal correspondence with author).
Variables:
Temperature = Temperature
Prepared By:
W.E. Acree, Jr.
Experimental Data:
(Notes on the Nomenclature)
T/K
Mole Fraction x
1
Mole Fraction x
2
282.05
0.063
0.937
286.35
0.072
0.928
289.55
0.084
0.916
289.85
0.082
0.918
292.45
0.094
0.906
295.45
0.104
0.894
298.65
0.119
0.881
302.45
0.138
0.862
306.75
0.163
0.837
310.25
0.189
0.811
317.05
0.243
0.757
319.25
0.277
0.723
319.65
0.276
0.724
324.15
0.340
0.660
325.75
0.368
0.632
Method/Apparatus/Procedure:
Constant temperature bath and a precision thermometer.
Solubilities were measured using a dynamic method. Mixtures of known concentrations were sealed in thick-walled glass ampoules and placed in a constant temperature to equilibrate. Bath temperature was slowly increased by 2 K per hour. Solubility determined by visually noting the temperature at which the last trace of solid solute disappeared.
Source and Purity of Materials:
(1) Purity not specified, P.O.Ch., Gliwice, Poland, was vacuum sublimed to a melting temperature of 80.25 ºC.
(2) Initial purity not specified, Reachim, Poland, was dried over phosphorous pentoxide and fractionally distilled to a final purity of 99.9+ %.
Estimated Errors:
Temperature: T/K: precision ± 0.01. x
1
: to 3 significant figs. (compiler).