| CAS No.: | 7775-14-6 |
|---|---|
| Formula: | Na2s2o4 |
| EINECS: | 231-890-0 |
| Certification: | ISO |
| Purity: | 80%~90% |
| Type: | Sulphur Black Br |
| Samples: |
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| Customization: |
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Audited Supplier Sulfur Dyes C.I. Sulphur Black 1 CAS 1326-82-5 Sulfur Black BR
Product Name: Sulfur black BR , Sulphur black BR , C.I. Sulphur Black 1.
Molecular formula: C6H4N2O5
Quality standard: GB/T25808-2010
CAS No.:1326-82-5
Application:
Sulfur black is insoluble in water and ethanol. It has good solubility in sodium sulfide solution and is green and black. Add sodium hydroxide to sodium sulfide aqueous solution to make the color blue; Add hydrochloric acid until there is green light and black precipitation in sodium sulfide solution; It is partially dissolved in cold concentrated sulfuric acid, heated to dark green light blue, and further heated to black blue; Black blue in 25% fuming sulfuric acid; There is green light and black precipitation after dilution; The dye is yellow olive in alkaline sodium hydrosulfite solution, and can restore its original color after oxidation; It will fade completely in sodium hypochlorite solution, and it will not be affected by adding concentrated sulfuric acid. It is mainly used for dyeing cotton, vinylon / cotton blended fabrics, as well as hemp and viscose fibers. It is also used for dyeing leather and paper etc.
Specification:
| Product name | Sulphur black BR |
| Quality standard | GB/T25808-2010 |
| Appearance | Flashing black flakes or granules |
| Strength | According to customer request |
| Moisture content | Max 6% |
| Insoluble substance in sodium sulfide | Max 0.5% |
Storage: It shall be stored in a cool, dry and ventilated place to prevent moisture and heat. The shelf life is one year.
Package: 25kg plastic bag, 25kg carton box, 25kg drum or Jumbo bag are available.
We can produce according to customer's request for different strength and quality. Please send us your standard strength and we will offer you countertype with best quality. Thanks!
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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