ABSTRACT In the process of making paper needed chemicals ClO2 which is one of the chemicals that can help the process of bleaching the pulp will be produced to be bleached pulp. Bleached pulp is the pulp that's been through the process of bleaching. To produce ClO2 needed sodium chlorate (NaClO3) with a concentration of 490 g/l and Hydrochloride Acid (HCl) with a concentration of 32% to r…