SSA from [K96b], SSD from [P66] determined using infra red method to examine CO2 adsorption and desorption, PZC from [K96b], capacitance determined using the solvation and electrostatic model for specific electrolyte adsorption of [SS97b]; protolysis constants determined using the experimental ZPC and predicted Kn, Kn predicted from the theory of [SS96a]