Tq Blue G
C.I.Reactive Blue 21
Molecular Structure: Phthalocyanine class
CAS Registry Number:12236-86-1/73049-92-0
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.
|Standard||Light Fastness||Oxygen bleaching||Persperation Fastness||Soaping|