Transference numbers of aqueous HCl up to 15 mol-kg-1 at 25°C : a systematization and reassessment

Ion-transfer parameters of aq. hydrochloric acid over a wide molality range have been re-investigated taking the concurrent solvent-transfer into due account. In this context, the transference nos. for the hydrogen ion τH and for water τw have been detd. from 10-2 to 15 mol-kg-1, together with the corresponding infinite-diln. values τH0×w0, by processing a set of nearly a hundred emf. measurements (some twenty of them new for this work) on HCl concn. cells with transference with both cation-reversible and anion- reversible electrode pairs.