IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

---

 Solubility System: Fluorene with Benzene

---

Components:
   (1) Fluorene; C13H10; [86-73-7]  NIST Chemistry WebBook for detail
   (2) Benzene; C6H6; [71-43-2]  NIST Chemistry WebBook for detail

Original Measurements:
   McLaughlin, E.; Zainal, H.A., J. Chem. Soc. 1959, 863-867.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
306.8	0.1604	0.8396
327.6	0.2778	0.7222
331.6	0.3095	0.6905
342.6	0.4059	0.5941
346.0	0.4405	0.5595

Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer.
Mixtures of known concentrations sealed in glass ampoules and placed in constant temperature to equilibrate. Samples were rotated while bath temperature slowly increased. Solubility determined by visual noting the same temperature at which the last trace of solid solute disappeared.

Source and Purity of Materials:
   (1) Purity not given, Gesellschaft fur Teerverwertung, was passed over an alumina column with benzene as eluant.
   (2) "AnalaR", was dried over sodium wire and freshly distilled before use.

Estimated Errors:

   Temperature: T/K: precision ± 0.1. x₁: ± 0.0003 (compiler).

Distributed by the Office of Data and Informatics of the National Institute of Standards and Technology (NIST) Material Measurement Laboratory (MML).
Website is owned by NIST (an agency of the U.S. Department of Commerce)

---

Last updated: February 18, 2015 (Created: August 17, 2007)