| CAS No.: | 7775-14-6 |
|---|---|
| Formula: | Na2s2o4 |
| Certification: | ISO |
| Environmental Protection: | No |
| Color: | White |
| Kind: | Bleacher |
| Samples: |
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| Customization: |
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Audited Supplier 85% , 88% , 90% min Sodium hydrosulphite powder industry grade CAS 7775 -14 - 6
Product Name: Sodium Dithionite, Sodium hydrosulphite, Sodium hydrosulfite 85%min, 88%min, 90%min
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 85%, 88%, 90% |
| Water insoluble | Max 0.1% |
| Fe content | Max 20ppm |
| Other heavy metals | Max 10ppm |
| Smell | Odorless or a little smell of SO2 |
| Na2CO3 | 1.5~3% |
| Na2S2O3 | 0.5~1% |
| Na2SO3 | 0.5~1.5% |
Application:
1. As a reducing agent for printing and dyeing, synthetic dyes and intermediate production, printing and dyeing auxiliaries.
2. Bleaching agent used in the paper pulp.
3. Used as bleaching agent for clay in ceramic industry.
4. Used as reducing agent and bleaching agent in pharmaceutical, food, metallurgy, leather and other industries.
5. Used as deoxidizer in styrene butadiene rubber synthesis.
6. Used as a developer in the photographic industry.
7. Other industries.
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. If stored for more than 6 months, it could have some caking.
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 also produce 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. More than 50% of our products are exported to Southeast Asia, Europe and the United States and other overseas markets. We offer the most competitive price and always on-time delivery to support our customers from all over the world.
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.
https://zhanjiuindustry.en.made-in-china.com/company-ZHANJIU-SHANGHAI-INDUSTRIAL-CO-LTD.html
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