Abstract
Although our knowledge of the ionising power of non-aqueous solvents has been considerably increased during recent years by the investigations of Walden, Franklin, Kahlenberg, and others, the liquefied halogen hydrides and sulphuretted hydrogen have received little or no attention. Gore (‘Phil. Mag.’ (4), 29, p. 54), who experimented at ordinary temperatures, found that the hydrides of chlorine, bromine, and iodine were very feeble conductors. Bleckrode (‘Pog. Ann.’ (2), 23, p. 101) stated that hydrogen bromide conducts slightly; while Hittorf (‘Pog. Ann.' (2), 3, p. 161, 4, p. 374, considered these substances to be non-conductors.