Sodium hydrosulfite

CAS: 7775-14-6

Na2S2O4: 90% Min.

Fe: 20ppm Max.

Zinc: 1ppm Max.

Other heavy metal calculated as Pb: 1ppm Max.

Water Insoluble: 0.05% Max.

Shelf Life: 12 month

Application:

1. Used as reducer, dyes auxiliary of dyeing industry, synthetic dyes and intermediates.

2. Used as bleaching agent of paper pulp in paper-making industry.

3. Used as bleaching agent of china clay in the ceramics industry.

4. Used as deoxidizer of rubber and styrene butadiene rubber synthesis, developer in photo-taking industry.

5. Used as reducing agent, bleaching agent in the industries including pharmacy, food, metallurgy and leather.

Packaging: 50kg/drum or as customers request.