... ---0.001% max2.Used as textiles industry, printing, detergent, paper-making, soap-making,oil-refining and making synthetic fiber, plastics ... used in pulping and bleaching processes, the de-inking of waste paper and water treatment.4.Attractive price, premium quality and ... .Its main uses are in the manufacture of pulp and paper, alumina, soap and detergents, petroleum products and chemical production ...