Features: 1) Small consumption, good effect 2) Without bad smell during operation Specifications: 1) Purity: 99.0% min. 2) Moisture: 0.05% max. 3) Sulphate: 0.17% max. 4) PH value: 5 - 6 Applications: 1) Can be used as cleaning agent after disperse dyestuff dyeing, and reducing agent when reduce dyestuff dyeing 2) Can also be used as pulp and paper bleaching agent, in waste paper and recycle paper deink, deinking