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Product Details:
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| Appearance: | White Crystalline Powder | Purity: | Min 90% |
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| Water Insoluble: | Max 0.1% | Fe: | Max 0.002% |
| Molecular Formula: | Na2S2O4 | IMO Class: | 4.2 |
| High Light: | Industry Sodium hydrosulphite,Sodium hydrosulphite UN NO.1384,7775-4-6 90% Min |
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Sodium hydrosulphite powder CAS 7775-4-6 industry grade 90%min
Product Name: Sodium hydrosulphite, Sodium Dithionite, Sodium hydrosulfite
Quality standard: HG / T 2074 - 2011
Molecular formula: Na2S2O4
UN NO.: 1384
IMO Class: 4.2
Specification:
| Items | Specification |
| Appearance | White crystalline powder |
| Purity | Min 90% |
| Smell | A little smell of SO2 |
| Water insoluble | Max 0.1% |
| Fe content | Max 0.002% |
| Zn content | Max 0.0001% |
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.
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