Adsorption of ions at the cellulose/aqueous electrolyte interface. Part 1.—Charge/pH isotherms

Abstract

Charge/pH isotherms are reported for various cellulose fibres: cotton linters, bleached sulphate pulp and unbleached sulphate pulp. This charge was determined as a function of pH for 1.0, 0.1, 0.01 and 0.001 mol dm^–3 NaCl. The effect of various cations on the charge on bleached sulphate pulp was also investigated. The results for cotton linters and bleached sulphate pulp are analysed in terms of polyelectrolyte theory.