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Product Details:
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| Appearance: | White Crystalline Powder | Purity: | Min 85%, Min 88%, Min 90% |
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| Water Insoluble: | Max 0.1% | Fe: | Max 20ppm |
| Other Heavy Metals: | Max 10ppm | Na2CO3: | 2~3% |
| Na2S2O3: | 0.5~1% | Na2S2O5: | 5~7% |
| High Light: | Sodium Hydrosulphite 7775 14 6,90% Min Sodium Hydrosulphite,85% Sodium Dithionite |
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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.
Contact Person: Ms. Emily
Tel: +86 13816701879
