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Solubility System: 1,2,4-Trichlorobenzene with Water (Original Report)

Components:
(1) 1,2,4-Trichlorobenzene, C6H3Cl3; [120-82-1] NIST Chemistry WebBook
(2) Water, H2O; [7732-18-5] NIST Chemistry WebBook
Original Measurements

Variables:
T = Ambient Temperature (K)
x1 = Mole Fraction (Component 1)
s1 = Solubility (mass/mass) (Comp1 in Comp2 of two component system) (g/kg)
c1 = Amount Concentration (moles/volume) (Comp1) (mol/dm3)
Evaluated By:
Ari L. Horvath
Critical Review (-):
The solubility of 1,2,4-trichlorobenzene in water has been measured by Meleshchenko (1), Yalkowsky et al. (2), and Chiou et al. (3). However, there appears to be a serious discrepancy between the three reported solubility values. According to the authors, the error estimates in their measurements were ±8 percent for Meleshchenko, ±10 percent for Yalkowsky et al., and ±5 percent for Chiou et al. Consequently, in view of these uncertainties, the recommended solubility value must be taken as the arithmetical mean for the three reported measured values.

With reference to Figure 3 and Figure 4 in the Introduction, the recommended solubility of l,2,4-trichlorobenzene in water given below for 298.15 K is within an acceptable margin of expectation.

The single data point available for the solubility of water in 1,2,4-trichlorobenzene at 298.15 K by Eidinoff (4) is accepted as a tentative value.

Experimental Data:
T (K)x1 s1 (g/kg)c1 (mol/dm3)
298.153.82 x 1043.79 x 1023.05 x 10-3
T (K)x2 s2 (g/kg)x2 c2 (mol/dm3)
298.152.03 x 1032.02 x 1012.03 x 10-30.0163

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