Name:C.I.Reactive Red 11
Molecular Structure: Single azo class
Molecular Formula:C20H9Cl2N6Na3O9S2
Molecular Weight: 681.33
CAS Registry Number:12226-08-3
Properties and Applications: colourful red blue light. Purplish red powder. The strong sulfuric acid for purple, diluted into blue light red, precipitation; In nitric acid for red, diluted is still red, precipitation. Blue water solution is red, with 1 Moore sodium hydroxide solution turned red, continue to add insurance powder and warm, become light yellow, plus a boric acid sodium is still light yellow. Mainly used for cotton, viscose fabric and silk dyeing and printing.
Standard | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
Fading | Stain | Fading | Stain | Fading | Stain | ||
ISO | 4 | 4-5 | 4 | 4-5 | 2 | 4-5(5*100℃) | 3-4 |