1. Purity: 70%, 80%, 90% 2. Industry grade 3. Output: 2000 tons/year Sodium Sulfite Anhydrous♥Description Appearance: ... and dyeing, paper making,photo, textile industry, artificial fiber, fabric, leather industry, water treatment, laundry detergents, glass industry. ♥Specification ItemsSpecificationResultsSodium sulphite %96 min96 ...