IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1,2,4-Trimethylbenzene with Water

   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1,2,4-Trimethylbenzene; C9H12; [95-63-6]  NIST Chemistry WebBook for detail

Original Measurements:
   Sanemasa, I.; Araki, M.; Deguchi, T.; Nagai, H., Bull. Chem. Soc. Jpn. 1982, 55, 1054-62.

   Temperature = 15 °C - 45 °C

Prepared By:
   G.T. Hefter

Experimental Data:   (Notes on the Nomenclature)
Solubility of 1,2,4-trimethylbenzene in water
t/°C104 * Concentration c1 [mol dm**-3]103 * g1/100 g solution (compiler)g1/100 g soln. Note (compiler)106 * Mole Fraction x1 (compiler)x1 Comp Note
154.35 ± 0.125.23a7.84a
254.69 ± 0.075.65a8.48a
355.14 ± 0.206.21a9.32a
455.71 ± 0.076.93a10.4a
   a  Assuming solution densities to be the same as those of pure water at the same temperature (ref 1).

   The apparatus is similar to an earlier design (ref 2) and is described in detail in the paper. 100-200 cm3 of (2) and 10-20 cm3 of liquid (1) were placed in separate but connected thermostatted flasks. After thermal equilibrium was established a recirculating stream of air was used to vaporize liquid (1) and to transport the vapor to the flask containing (2). Five 10 cm3 aliquots were withdrawn into separatory funnels. The concentration of (1) in (2) was then determined by extraction into chloroform followed by UV-spectrophotometry. Standards for the spectrophotometry were prepared by weight from pure liquid solutes.

Source and Purity of Materials:
   (1) Analytical reagent grade (Wako Pure Chemical Ind. Ltd.), stated purity 95.0%, used without further purification.
   (2) Redistilled; no further details given.

Estimated Errors:
   Solubility: see table, type of error not specified.
   Temperature: ± 0.01°C

   1Kell, G.S., J. Chem. Eng. Data 1975, 20, 97.
   2Sanemasa, I.; Araki, M.; Deguchi, Y.; Nagai, H., Chem. Lett. 1981, 225-8.