Ethane

Cassini first confirmed the presence of liquid ethane in a lake called Ontario Lacus, in Titan’s southern hemisphere, during its 2008 flyby of the Saturnian moon.

chlorinated ethanes; halogenated ethanes

The dissociation constants for ethanes in which the two halves of the molecule are different are not always close to the mean of the dissociation constants of the corresponding symmetrical ethanes.

Analysis of the ethane fraction also revealed anomalous deuteration of the ethane, the ethanes C₂H₅D, C₂H₄D₂ and C₂H₃D₃ being observed as well as C₂H₆. Ethanes with more than three D atoms were not detected.