Reactive Turquoise Blue Kn-G

The Uses of Reactive Turquoise Blue Kn-G

Reactive Blue 21 is a phthalocyanine dye that can be decolorized by fungal strains isolated from contaminated soil.

Preparation

Copper phthalocyanine use chlorosulfonic and chlorinated and sulfones chlorosulfonated, and registration, 2-(4-Aminophenylsulfonyl)ethyl hydrogen sulfate condensation.

Properties and Applications

colourful green light blue. Blue powder. The strong sulfuric acid in blue, diluted for blue still; In nitric acid for green, diluted into a green light. Water solution is blue lake, add 1 Moore sodium hydroxide solution is still lake blue; Continue to join insurance powder and warm, into purple; Add a boric acid sodium return to a lake blue, colour and lustre is a little shallow. Used for cotton, linen, silk, polyamide fiber of knot dyeing and roll dye, also can be used in viscose fabric printing.