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Indigo Blue

Indigo Blue

其他信息

Appearance:

dark blue powder or granules

CAS No.:

482-89-3

Molecular Formula:

C16h10n2o2

EINECS:

207-586-9

Certification:

ISO9000, SGS, BV

Product Description:

 Product Name:Indigo Blue

CAS No.: 482-89-3

Formula: C16h10n2o2

EINECS: 207-586-9

Colour: Blue

Appearance: dark blue powder or granules

Usage: Paint, Plastic, Leather, Paper, Textile

Quality Specification:                                              

Products name Indigo Blue
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, but can be dissolved in hot aniline and melt phthalic anhydride. 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.

Features:

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.

Application:

used dyeing on cotton, also used dyeing on cambric, viscose and vinylon,etc.

1.widely used for dyeing cotton fibre and polyester;

2.used for direct printing on cotton fibre

3.can be processed into organic pigment

Packing

Standard packaging includes the following:25kg per bag.

Other package sizes are available upon request.

Storage

Store in a well-ventilated, cool, dry area, out of direct sunlight. Keep containers tightly closed when not in use.

Period of validity

24 months.

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