Ethene in Water
Considering the importance of ethene industrially (mostly as a feedstock) it is surprising that there have been so few studies of its solubility in water. In fact, most of the measurements were made only at one temperature, with only Ref. 3,4, and 9 at more than one temperature.
(1994). Ethene in Water. IUPAC Solubility Data Series, 57, 1-2.