The behaviour of negative charge carriers in hexane

A study of negative charge behaviour in the insulating liquid hexane has shown the necessity of taking due account of the bulk liquid motion associated with carrier displacement. The time for charge to cross an electrically stressed gap was found to vary with the magnitude of charge injection. Mobility values, incorporating corrections for transit-time modification due to liquid motion, are deduced from measurements made at stresses up to 20 kv cm −1 . These values are lower than those recorded by previous investigators, and suggest that the charge carriers may be negative ions or polarons.