Vat Blue/Indigo Blue, Indigo Dye for Denim Dyeing

• CAS No.: 482-89-3
• Formula: C16h10n2o2
• EINECS: 207-586-9
• Model NO.: Indigo Blue 94%
• Colour: Blue
• Appearance: Powder
• Usage: Paint, Ink, Food
• Application Material: Leather
• Name: Indigo Blue
• Content: 94%
• C.I.No.: Vat Blue 6
• Product Name: Indigo Blue
• Other Name: Indigo
• Density: 1.417g/cm3
• Melting Point: 390-392 ° C (DEC.)
• Boiling Point: 400.4 ° C at 760 Mmhg
• Flash Point: 158.2 ° C
• Steam Pressure: 1.27e-06mmhg at 25°c
• Indigo Blue Appearance: Dark Blue Even Granular
• Moisture: 1% Max
• Fe3: 300ppm Max
• Formula Weight: 262.2628
• Application: Textile Industry
• Sample: Available
• Storage: Dry Place
• Loading Quantity: 11mt/20′container
• Transport Package: 25kg Bag
• Specification: 25kg net
• Trademark: KELAI
• Origin: China
• HS Code: 3204151000
• Production Capacity: 5000mt/Year

Product Description

Product Description

1.Indigo Blue Powder or Granular 94%

1)We are the biggest manufacturer of disperse dyes,the second biggest manufacturer of     reeactive dyes and sodium hydrosulfite, and specializing in manufacture of indigo blue,sulphur black, vat dyes, basic dyes, direct dyes and OBA

2.Indigo BLue (Vat Blue dyes)

Molecular Formula: C₁₆H₁₀N₂O₂

Colour Index: C.I. Vat Blue 1

Cas No. 482-89-3

Composion: Phenylethane acid potassium salt reacts to amino sodium through alkali fusion, and then oxidized.
Appearance: Dark blue even Granular and Powder 
Strength:94%
Shade: To the similar standard of the factory
Moisture%:0.45 Max
Particle size(-60 mesh)%: 95
Fe3:200ppm Max

3.Properties of indigo:

It is insoluble in water and alcohol.It is soluble in hot Aniline.
 

4.Detailed informations of indigo as following:

Cas No.	482-89-3
Colour Index	Vat Blue 1
Appearance	Dark blue,Powder,Granular
Colour light	Similar as the standard sample
Content	≥93.0%,94.0%
Moisture content	≤1.0%
Strength	Equal to 100 percent of the standard sample
PH Range	9.5-10.5
Content of ferric ions	≤200PPM
Properties	It is insoluble in water and alcohol.It is soluble in hot Aniline

 

5.Use of indigo:
It is mainly used to dye cotton fibre .The pop "cowboy" clothes mostly are made by indigo blue dying longitudinal yarn and white yarn interweaving;It can be used with sulfurated coloring matter;Also we can get indigo white,bromized indigo blue from it,they are well used in food coloring matter,biochemistry etc. 














6.Packages of indigo:

25KG Plastic-Woven Bag with double polyester liner
20KG Carton with double polyester liner
20KG/15KG Iron Drum with double polyester liner