| CAS No.: | 7775-14-6 |
|---|---|
| Formula: | Na2s2o4 |
| EINECS: | 231-890-0 |
| Certification: | ISO |
| Appearance: | Powder |
| Water Insoluble: | Max 0.2% |
| Samples: |
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| Customization: |
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Audited Supplier 85% min Sodium hydrosulphite powder industry grade CAS 7775 -14 - 6
Product Name: Sodium Dithionite, Sodium hydrosulphite, Sodium hydrosulfite
Molecular formula: Na2S2O4
Quality standard: HG / T 2074 - 2011
IMO Class: 4.2
UN NO.: 1384
Specification:
| Items | Specification |
| Appearance | White crystalline powder |
| Purity | Min 88% |
| Water insoluble | Max 0.2% |
| Fe content | Max 0.002% |
| Zn content | Max 0.0001% |
| Smell | A little smell of SO2 |
| Water solution | Clear transparent liquid |
Application: Sodium hydrosulfite powder is widely used in reductive dyeing, reductive cleaning, printing and decolorization of textile industry and bleaching of fabrics such as silk, wool and nylon. Because it does not contain heavy metals, the bleached fabrics have bright color and are not easy to fade. Sodium hydrosulphite powder can also be used in organic synthesis, such as reducing agent or bleach in the production of dyes and drugs. It is suitable for bleaching of wood pulp and paper, and can also be used to preserve food and fruits.
Storage: Sodium hydrosulfite powder shall be stored in a cool, dry, ventilated and covered warehouse to avoid direct sunlight. Keep away from heat sources and do not mix with water or steam. It shall not be mixed with oxidant or other inflammables. The bag mouth shall be tied up immediately and tightly after use and stored properly.
The storage period is half a year from the date of production. Products beyond the storage period of half a year shall be subject to quality inspection before use.
Our factory has more than 20 years' history for sodium hydrosulphite production, covering an area of 100000 square meters, with more than 300 employees. We specializes in the production and sales of 100000 MT per year for sodium hydrosulphite, 20000 Mt per year for sulfur dioxide and anhydrous sodium sulfite, 30000 MT per year for sodium metabisulphite etc. The products are mainly used in textile printing and dyeing, papermaking, medicine, food and other industries. While occupying the domestic market, we expand our import and export business well to Southeast Asia, Europe and the United States and other overseas markets, and are highly praised and trusted by customers.We always take the quality as the most important. We also offer the most competative price to support our customers and grow together with our customers all over the world. Wish we have opportunity to start our business!
ZHANJIU (SHANGHA) INDUSTRIAL CO, LTD is a professional supplier of fine chemicals for many industry fields, specializing for chemicals widely used in textile printing & dyeing, leather processing.water treatment, food & feed additives, pharmaceuticals and other areas.We have own cooperated factories for sodium percarbonate, sodium hydrosulfite, surfactant, sulphur dyes and textile auxiliariesetc.Our cooperated factory for sodium hydrosulfite has capacity of 100,000 metric tons per year, wealso produce sodium metabisulfite and sodium formate etc.Our factory has internationally advanced production equipment and production technology.Comprehensively utilizes the by-products in the production process, and fully advocates circulareconomy and cleaner production.
Our manufacture base for Sulphur dyes is located in East China and founded in 2003. The main products are solid and liquid sulphur dyes, sodium thiosulfate, sodium sulfide, etc. Our capacity for sulphur dyes is 30000 tons of solid and 30000 tons of liquid every year.
Our cooperated factory for sodium percarbonate has capacity of 100,000 metric tons per year and we already exported more than 50 countries. The main application of sodium percarbonate is indetergent and aquaculture industries, For aquaculture, we can supply granular uncoated type and tablet type. It is Class 5.1 dangerous chemicals and we have very good professional experiences for exporting this product.
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