Conductivity of phosphoric acid, sodium, potassium, and ammonium phosphates in dilute aqueous solutions from 278.15 K to 308.15 K

Precise conductivity measurements on aqueous solutions of phosphoric acid, sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihyd rogen phosphate, disodium hydrogen phosphate, dipotassium hydrogen phosphat e, diammonium hydrogen phosphate, sodium phosphate, and potassium phosphate were performed from 5 to 35 degrees C. Data analysis was executed by the u se of the Quint-Viallard equation for unsymmetrical electrolytes. Equations are given for the concentration dependence of electrolyte and single-ion c onductivities at all temperatures.