Low price Industrial grade Sodium metabisulfite / Sodium pyrosulfite Na2S2O5 97%min Cas 7681-57-4
China factory wholesale quality sodium pyrosulfite nice price for sale
| Item | Chinese standard | Company standard | |
| HG/T2826-2008 | |||
| Top-grade | First grade | ||
| Main content(Na2S2O5) | 96.0 min | 95 | 96.5 |
| Fe %( Fe) | 0.005max | 0.01 | 0.002 |
| Water-Insoluble | 0.05max | 0.05 | 0.02 |
| Arsenic(As) content | 0.0001max | —— | 0.0001 |
Usage:
1. Chemical industry
Used in the production of insurance powder, sulfamethazine, a caprolactam, etc., as well as the purification of chloroform, phenylpropane sulfone and benzaldehyde. The photographic industry is used as an ingredient in fixers. The perfume industry is used to produce vanillin. Used as a preservative for brewing industry, a rubber coagulant and a bleaching agent for cotton bleaching. Organic intermediates, dyes, and tanning are used as reducing agents for electroplating, wastewater treatment in oil fields, and as a mineralizer for mines.
2. industry
It is used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; as a preservative, bleaching agent and loosening agent in food processing.
3. Used as a chemical reagent
(Printing and dyeing, photography, etc.), used as bleach mordant, reducing agent rubber coagulant, also used in organic synthetic pharmaceuticals and spices.
Jiangsu Changzhou Shanglian Chemical Co., Ltd. was established in 1998, It has a storage warehouse of more than 3000 square meters and has the ability of spot trading.
Main business of the company: Textile printing and dyeing, metal surface treatment, coating rubber and plastic, environmental protection water treatment, phosphating washing, electronic machinery, glass building materials, edible adhesive, flocking and other chemical raw materials. Shanglian Chemical Co., Ltd. has strong strength, credit, contract and quality assurance. It has won the trust of customers with its multi-variety management features and the principle of small profits but quick turnover.
1) Professional chemical trading company, own cooperative factory
2) Small samples can be provided, more details can be negotiated
3) Quality assurance and good after-sales service
4) Competitive price and timely delivery
5) 24h service
6)We have a large stock
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