IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

---

 Solubility System: Acridine with Thiophene

---

Components:
   (1) Thiophene; C4H4S; [110-02-1]  NIST Chemistry WebBook for detail
   (2) Acridine; C13H9N; [260-94-6]  NIST Chemistry WebBook for detail

Original Measurements:
   Coon, J.E.; Sediawan, W.B.; Auwaerter, J.E.; McLaughlin, E., J. Solution Chem. 1988, 16, 519-534.

Variables:
   Temperature = Temperature

Prepared By:
   W. E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
302.1	0.1797	0.8203
304.1	0.1976	0.8024
314.2	0.2437	0.7563
325.0	0.2944	0.7056
331.6	0.3503	0.6497
337.9	0.3885	0.6115

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 noting the temperature at which the  last trace of solid solute disappeared.

Source and Purity of Materials:
   (1) 99 %, Kodak Chemical Company, Rochester, New York, USA, was purified by vacuum sublimation to purity of 99.87 %.
   (2) Gold Label, 99.9+ %, Aldrich Chemical Company, was used as received.

Estimated Errors:
   Solubility: x₁: ± 0.0003.
   Temperature: T/K: precision ± 0.1.

References:
   ¹W.E. Acree, Jr.

---

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)