IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Naphthalene with Cyclohexane
Components:
   (1) Cyclohexane; C6H12; [110-82-7]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail
Evaluator:
   W.E. Acree, Jr. Department of Chemistry University of North Texas Denton, Texas 76203-5068 (USA) August, 1994

 Critical Evaluation:
   Naphthalene solubilities in cyclohexane were retrieved from papers by Heric and Yeh (1), Choi et al. (2), Domanska (3), McLaughlin (4), Acree et al. (5), Heric and Posey (6) and Chang (7). The first four studies report solubilities at several temperatures, Acree et al. determined values at 303, 308 and 313 K, and the latter two studies measured the mole fraction solubility at a single temperature of 298 K. There is not a prior reason to exclude any of the seven studies from the critical evaluation.
Regressional analysis of the experimental data as Ln x1 versus 1/T yielded the following mathmatical relationship: Ln x1 = - 3916.1 (1/T) + 11.2291 (r=0.9984) for variation of naphthalene solubility with absolute temperature (see graph below).

 Experimental Data:   (Notes on the Nomenclature)

 References: (Click a link to see its experimental data associated with the reference)
   1  Heric, E.L; Yeh, K.N., J. Chem. Eng. Data 1970, 15, 13-17.
   2  Choi, P.B.; Williams, C.P.; Buehring, K.G.; McLaughlin, E., J. Chem. Eng. Data 1985, 30, 403-409.
   3  Domanska, U. Polish J. Chem. 1981, 55, 1715-1720. (numerical values obtained through personal correspondence with author).
   4  McLaughlin, E.; Zainal, H.A., J. Chem. Soc. 1960, 3854-3857.
   5  Acree, W.E., Jr.; Pontikos, N.M.; Judy, C.L., Int. J. Pharm. 1986, 31, 225-230.
   6  Heric, E.L.; Posey, C.D., J. Chem. Eng. Data 1964, 9, 35-43.
   7  Chang, W., Ph.D Dissertation, North Dakota State University, North Dakota, USA (1969).