Active Member
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[China]
Address: 139-141 Wai Yip Street, Kwun Tong Kowloon, Hongkong, China.
Contact name:Bruce Chen
Rare Mine Chemical Resources Limited |
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90% GRADE | 88% GRADE | 85% GRADE | Food additive GRADE | |
| Na2S2O4 | ≥90% | ≥88% | ≥85% | ≥85% |
| Water insolubles | ≤0.05% | ≤0.05% | ≤0.05% | |
| Iron (Fe) | ≤20ppm | ≤20ppm | ≤20ppm | ≤20ppm |
Appearance of Aqueous solution | clear | |||
| Zinc (Zn) | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
| Arsenic(As) | ≤1ppm | |||
| Other heavy metals (as Pb) | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
| Format(as HCHO) | ≤0.05% | |||
| Shelf life(months) | 12 | 12 | 12 | 12 |
Application:
1. Used as reducer, dyes auxiliary of dyeing industry, synthetic dyes.
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.
