Product Description
Indigo blue 94% / Vat blue 1/ :
[ Molecular Formula ] :C16H10N2O2
[ Composion ] :Phenylethane acid potassium salt reacts to amino sodium through alkali
fusion, and then oxidized.
[Appearance]: Dark blue even Granular
[Strength]: 94%
[Shade]: To the similar standard of the factory
[Moisture%]: 0.45 Max
[Fe3+]: 200ppm Max
[Properties]: It is insoluble in water and alcohol.It is soluble in hot Aniline.
[Properties]: For dyeing on cotton fabrics and Jeans and making up indigo bromide. or made into organic pigment , moreover, be used to make 5.5-7.7-tetraroma indigo, biochemical medicament and indicator