Indigo Blue:coloring matler index C.1 revert blue (73000). Indigo bule is an important organic dye, for dyeing on cotton fabrics and jeans and making up indigo bromide,or made into organic
|Colour Index||Vat Blue 1|
|Appearance||Dark blue, Powder, Granular|
|Relative molecular weight||262.27(according to the International molecular weight of 1983|
|Colour light||Similar as the standard sample|
|Strength||Equal to 100 percent of the standard sample|
|Content of ferric ions||≤200PPM|
|Properties||It is insoluble in water and alcohol.It is soluble in hot Aniline|
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 of Indigo blue 94%
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.
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.
Why choosing us:
1. Over 10 years export experience in the chemical industry with professional sevice.
2. Strong professional team to develop product and control mass production quality.
3. Usually the standard of PHASE-I is between 10%–30%, we can adjust it based on buyers demand.