Bromo Indigo Powder Vat Dyes C. I. 73065 Vat Blue 5 Indigo 2b

• CAS No.: 2475-33-4
• Formula: C42h18n2o6
• EINECS: 250-961-7
• Colour: Blue
• Appearance: Granular Powder
• Usage: Textile
• Model NO.: Bromo indigo
• Application Material: Cotton Yarn, Fabrics etc.
• Name: Vat Blue Clf
• Content: 100%
• C.I.No.: Vat Blue 66
• Purity: Min 93%
• Water Content: Max 1%
• Iron Content: Max 200ppm
• Product Name: Bromo Indigo Powder
• Transport Package: 25kg Carton Box or Iron Drum
• Specification: min 99%
• Trademark: ZHANJIU
• Origin: China
• HS Code: 3204159000
• Production Capacity: 5000mt/Year

Product Description

 

Product Name:BASF brilliant indigo; Ciba blue 2B; Bromindigo; Arlanon Blue 2B; Bromo Indigo 2B/2BD; Indigo 4BR.I. Vat Blue 5 (73065)

Molecular Formula:C16H6Br4N2O2

CAS: 2475-31-2

 

Application:

1. Cotton fiber dyeing

Bromine indigo dyeing needs to be reduced in a dry VAT, which takes 10 ~ 20min, 60 ~ 80 ºC, and the stabilization time is

Above 60min, the levelness and affinity were good.

Bromoindigo has very poor covering power to dead cotton. After dyeing, it is oxidized in the air or directly put into the oxidation bath (hydrogen peroxide or Sodium perborate) oxidation. After oxidation, it is soaped to make it fully colored.

 

2.Cotton printing

Bromo indigo is suitable for direct printing, discharge printing and anti-dyeing printing. Oxidize with sodium perborate or air ventilation.

 

3.Application in other fiber fabrics

Bromo indigo is suitable for dyeing viscose fibers, silk and wool fabrics. It has good levelness and affinity, and can be used for Vinylon/cotton blending fabrics, but the color is slightly darker than that of cotton.

 

Specification:

Items	Specification
Appearance	Homogenic dark blue powder
Shade	Similar as the standard sample
Purity	Min 93%
Moisture	max 1%
Strength	Equal to 100 percent of the standard sample
PH value	9.5~10.5
Fe	Max 200ppm
Wetting power	Max 10 second

 

Storage:

The product must be stored in cool, dry & well-ventilated warehouse. Avoid to be contacted with oxidizing chemicals and combustible organic substances. Keep it away from direct sunlight, heat, sparks and open flames. Carefully handle the product and avoid damaging the package.

 

Character:

The appearance of bromoindigo is dark blue powder. Insoluble in water and alcohol, soluble in xylene, tetrahydronaphthalene and nitrobenzene. It is blue-green in concentrated sulfuric acid. After dilution, it will precipitate into blue. After alkaline reduction of the dye, the leucophore is yellow and the acid state is light yellow.

 

ZHANJIU (SHANGHAl) INDUSTRIAL CO., LTD is a professional supplier of fine chemicals for manyindustry fields, specializing for chemicals widely used in textile printing & dyeing, leather processing.water treatment, food & feed additives, pharmaceuticals and other areas.We have own cooperatedfactories for sodium percarbonate, sodium hydrosulfite, surfactant, sulphur dyes and textile auxiliaries
etc.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 mainproducts are solid and liquid sulphur dyes, sodium thiosulfate, sodium sulfide, etc. Our capacity forsulphur 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 andwe 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 andtablet type. It is Class 5.1 dangerous chemicals and we have very good professional experiences forexporting 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.