CAS No.: | 164578-37-4 |
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Formula: | C12h22o2 |
EINECS: | 231-890-0 |
Certification: | ISO |
Purity: | 80%~90% |
Type: | Sodium Hydrosulfite |
Samples: |
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Customization: |
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Direct Dyes Direct Black VSF 22 C.1. 35435 CAS NO. 6473-13-8 1600 & 2200
Product Name: Direct black 22 , Direct black VSF, Direct black GN (C.I.No. 35435)
Molecular formula: C44H32N13Na3O11S3
CAS No.: 6473-13-8
Application: Direct black 22 is widely used in dyeing and printing of cotton and viscose fabrics, as well as dyeing of leather, wood, paper, chemical fertilizer, seeds, firecracker paper, willow weaving, etc.
Specification:
Item | Specification |
Appearance | Black dye powder |
Physical propertie | Solid powder |
Application | Use in textile industry |
Solubility in water | Soluble in water |
Strength | 100% to standard strength |
Storage: It shall be stored in a cool, dry and ventilated place to prevent moisture and heat.
Chemical property:
Grey blue powder. The water solubility is good, the aqueous solution is purple black, and brown black precipitates are produced by adding concentrated hydrochloric acid; Add concentrated lye to make it dark blue and red. It is purple black in concentrated sulfuric acid and produces black brown precipitate after dilution; It is a reddish brown solution in concentrated nitric acid with precipitation. When dyeing, the color light changes slightly when encountering copper and iron ions.
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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