| Customization: | Available |
|---|---|
| CAS No.: | 7772-98-7 |
| Formula: | Na2s2o3/Na2s2o3 5H2O |
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Product Name
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Sodium Thiosulfate / Sodium Thiosuphate
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Appearance
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colorless, transparent crystal or crystalline fine grain
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Formula
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Na2S2O3/Na2S2O3 5H2O
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CAS No.
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7772-98-7
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EINECS No.
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231-867-5
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HS CODE
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2830909000
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Storage
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Airtight save
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Usage
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Reducing agent of dichromate in tanning, a neutralizer of nitrogen tail gas, a mordant, a bleach agent of straw and wool, and a dechlorination agent in pulp bleaching
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| Grade | Photograph | Tech |
| Na2S2O3·5H2O | 99% Min. | 99% Min. |
| Insoluble matter in water | 0.01% Max. | 0.03% Max. |
| Na2S | 0.001% Max. | 0.003% Max. |
| Fe | 0.001% Max. | 0.003% Max. |
| pH value (200g/L solution) | 6.5-9.5 | 6.5-9.5 |
| Grade | Specs |
| Na2S2O3 | 97% Min. |
| Insoluble matter in water | 0.03% Max. |
| Na2S | 0.001% Max. |
| Fe | 0.005% Max. |
| pH value (200g/L solution) | 6.5-9.5 |
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Item
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Photographic grade
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Industrial grade
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Anhydrous grade
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Appearance
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colorless transparent crystal
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colorless transparent crystal
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white powder
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Assay
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≥99.00%
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≥98.5%
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≥97.0%
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Water Insoluble matter
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≤0.01%
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≤0.03%
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≤0.03%
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Sulfide
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≤0.001%
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≤0.003%
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≤0.001%
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Fe
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≤0.001%
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≤0.003%
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≤0.005%
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PH
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6.5~9.5
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6.5~9.5
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6.5~9.5
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Water solution reaction
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in accordance with the test
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in accordance with the test
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Granularity(g/g)
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12~16
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---
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----
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Residual AM (PPM)
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<500
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<500
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<500
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PH Value
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5-14
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5-14
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5-14
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1. Used in photographic and electroplate applications.
2. For purifying soft water and tanning hides.
3.As a reducing agent, fixers, blush preventive agent, deoxidizer, sulfur dyeing agent, anti-whiting agent, detergent,
disinfectant and color faking agent.
25 KG bag , 25 MT/20'FCL .
also be packed according to customer's needs.
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
Hebei Orcel Trade Co.,Ltd is a professional chemical manufacturer and exporter. It is located in Hebei Province, China, near the port.
The product quality and technology have reached the international standards, and it has become a well-known brand in China's titanium dioxide industry.The products have been sold well all over the world and exported to many countries in Southeast Asia, North America, South America, Europe and other regions.We employ professional technicians to make the product progress. We pay attention to product quality, environmental protection and harmlessness. We are trying our best to let customers buy high-quality products at cheap prices and serve customers better.
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