Gabor Jancso 1 2.5e+01 Ambient temperature 2 2.5 °C -3 9.98e-03 Molality (1 in 2) 3 9.98 mol/kg 1 -3 1.808e-03 Mole fraction - Liquid (1) 4 1.808 1 -1 1.999e-01 Relative mass - solution (1) 4 1.999 g/kg 1 Solubility, Solubility data series Between 25 and 100 mL 1,2,4-trichlorobenzene and 1 to 2 mL $\ce{D2O}$ were placed in a flask and shaken for about 90 min. The thermostat water bath temperature was maintained within ±0.05 °C. Then, a sample was removed and the amount of $\ce{D2O}$ dissolved was determined by a modified Karl Fischer titration [1]. The original report was unavailable; however, the method and the results were described in sufficient detail in [1]. The solubility of $\ce{H2O}$ in 1,2,4-trichlorobenzene was also determined and found to be 0.01123 mol[1]/kg. The average deviation for two experiments was ±0.00006 mol[1]/kg. The International Union of Pure and Applied Chemistry Eidinoff, M. L. In "Production of Heavy Water", National Nuclear Energy Series Division III-Vol. 4F, Murphy, G. M.; Urey, H. C.; Kirshenbaum, I.; Eds.; McGraw-Hill: New York, 1955; Part II, Chapter 7, pp 129-44. chapter Hutchinson, C. A.; Lyon, A. M.; Columbia University Report A-745, July 1, 1943. report 7789-20-0 1 D2O InChI=1S/H2O/h1H2/i/hD2 XLYOFNOQVPJJNP-ZSJDYOACSA-N 20.0276 Water-d2 Carefully purified and dried before use. Source and method not given. 120-82-1 2 C6H3Cl3 InChI=1S/C6H3Cl3/c7-4-1-2-5(8)6(9)3-4/h1-3H PBKONEOXTCPAFI-UHFFFAOYSA-N 181.447 1,2,4-Trichlorobenzene Source not specified. Water-d2 with 1,2,4-Trichlorobenzene