94% Indigo Blue Used for Dyeing Cotton or Silk

• Customization: Available
• CAS No.: 482-89-3
• Formula: C16h10n2o2
• Model NO.: Indigo
• EINECS: 207-586-9
• Colour: Blue
• Appearance: Powder or Granules
• Usage: Leather, Textile
• Application Material: Leather
• Name: Vat Blue
• Content: 94%
• C.I.No.: Vat Blue 6
• Indigo pH Range: 9.5-10.5
• Certification: ISO/SGS
• Delivery Time: 5-7 Days After Payment
• Suppy Type: Factory
• Shelf Life: 2 Years
• Product Name: Indigo Blue
• Indigo Type: Reactive Dye
• Sample: Free of Charge
• Price Validity: 7 Days
• Purity: 94%
• Form: Powder or Granules
• Price: Negotiable
• MOQ: 1 Ton
• Color: Dark Blue
• Indigo Content of Ferric Ions: 200ppm
• Transport Package: 25kg Bag
• Specification: 94%
• Trademark: Premtec Brand
• Origin: China
• HS Code: 320415100
• Production Capacity: 600 Ton/Tons Per Month

Product Description

94% Textile Dyestuffs materials indigo blue for fabric dying

Product Description

General Information:

Indigo blue is an important organic dye, for dyeing on cotton fabrics and jeans and making up indigo bromide,or made into organic
 
BASIC DETAILS:
Indigo Blue:coloring matler index C.1 revert blue (73000)   
1. C.I. NO. 73000
2. CAS NO. 482-89-3
3. APPEARANCE: BLUE POWDER OR GRANULAR
4. STRENGTH: 80%~94%
5. MOISTURE: ABOUT 0.45%
6. DETERMEINE:103PPM~112PPM
7.MF: C16H10N2O2
8. EINECS No.: 207-586-9
9. Type: Vat Dye
10. HS Coding: 32041510
11.Relative molecular weight:262.27(according to the International molecular weight of 1983)
 

Nature:
The appearance is dark blue even grains.It dissolves in hot anilin,but not in water. It turns yellow green when meeting  the oil of vitriol. It is yellow in alkaline rongalite revert liquid and white in acidic liquid.

Specification:
 

Indigo

 

Products name	Indigo(C.I Vat Blue 1#)
constitutional formula
molecular formula	C16H10N2O2
molecular weight	262
nature	This product is dark-blue uniform powdery or granular. It cannot be dissolved in water and common organic solvents such as ethanol and aether. Its melting point in the closed capillary is 390-392°C, and it begins sublimating slowly at 290°C. It has very good sunburn endurance and application performance.
test condition	HG/T 2750-1996
appearance	dark-blue uniform powder or granule
(1) Original powder
content	%≥94.0
particbe size(60mesh)	%≥96.0
moisture	%≤1.0
Fe3+	<200PPM
(2) Pelleting
content	%≥94.0
moisture	%≤1.0
Fe3+	<200PPM
(3) Promoter
content	%≥93.0
moisture	%≤0.8
Fe3+	<200PPM
use	Reducing indigo to be dyestuff, which can be mainly used in dyeing cotton  fabric, and otherwise can be made to 5.5'-7.7'- tetrabromo indigo, and then be used in biochemical and indicators, etc.

 

Use:
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.
 
Packages: 
25KG Plastic-Woven Bag with double polyester liner.


Storage & Transportation: 
The product must be stored in shade, 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.