Vsf 22 C. 1.35435 Direct Black Dyes Water Soluble Powder CAS 6473-13-8

• CAS No.: 164578-37-4
• Formula: C12h22o2
• EINECS: 231-890-0
• Certification: ISO
• Purity: 80%~90%
• Type: Sodium Hydrosulfite
• Model NO.: Direct black 22
• Appearance: Powder
• Grade Standard: Industrial Grade
• Product Name: Direct Black 22 1600%
• Colour Index: Direct Black Gn (C.I.No.35435)
• Strength: 100% to Standard
• Application: Dyeing and Printing for Cotton, Viscose, Leather, W
• Transport Package: 50kg Iron Drum, 100kg Iron Drum, 900kg Iron Drum
• Specification: Direct black 22
• Trademark: ZHANJIU
• Origin: China
• HS Code: 28311010
• Production Capacity: 100000 Metric Tons/Year

Product Description

 

 

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.

Product Description

Company Profile

    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.

FAQ

 

1) Do you accept small orders ?
     Yes, we can do it. Pls contact us for order details.
2) How about the price? Can you make it cheaper ?
    Price is negotiable under different conditions, we are assuring you to get the most competitive price.
3) Do you offer free samples ?
    Yes, we could offer the sample for free charge but do not pay the cost of freight.
4) What are your payment terms ?
     We usually accept T/T, L/C or other terms for negotiating.
5) Can I visit your factory in China ?
     Yes, you are welcomed to visit our factory.
6) How Can I place an order ?
    Kindly pls chat with us directly, or you could just send us inquiry, we will arrange your order accordingly after all details is  finalized.