Andrzej Maczynski, Z. Maczynska Solubility, Solubility data series A small amount of (2) was equilibrated with 20 mL of (1) using a Teflon stirrer in a 100 mL flask in a Sargent constant temperature bath. At the end of two hours, the mixture was poured into a test tube immersed in the bath and the organic phase separated from water by gravitation. The determination of $\ce{THO}$ in the organic phase was done by isotopic dilution with a large excess of $\ce{H2O}$. The tritium activities in the tritiated water samples were determined by the acetylene method described in [1]. The International Union of Pure and Applied Chemistry Wing, J.; Johnston, W. H.; Science 1955, 121, 674-5. paper https://doi.org/10.1126/science.121.3149.674 Wing, J.; Johnston, W. H.; J. Am. Chem. Soc. 1957, 79(4), 864-5. paper https://doi.org/10.1021/ja01561a021 7732-18-5 2 H2O InChI=1S/H2O/h1H2 XLYOFNOQVPJJNP-UHFFFAOYSA-N 18.0153 Water Tracerlab, Inc., tritiated water with an activity of approximately 1 microCi/mL. 71-43-2 1 C6H6 InChI=1S/C6H6/c1-2-4-6-5-3-1/h1-6H UHOVQNZJYSORNB-UHFFFAOYSA-N 78.1118 Benzene source not specified, chemical grade; redistilled in a column of 50 theoretical plates; purity not specified. Benzene with Water