IV. The halogen hydrides as conducting solvents. Part I.— The vapour pressures, densities, surface energies and viscosities of the pure solvents. Part II .—The conductivity and molecular weights of dissolved substances. Part III.—The transport numbers of certain dissolved substances. Part IV.—The abnormal variation of molecular conductivity, etc

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.