Reactive Blue(p) P3R

Reactive Blue(p) P3R


Textile Dyestuffs 

C.I.Reactive Blue 49

Molecular Structure: anthraquinones



C.I.Reactive Blue 49

Reactive Blue K-3R

Reactive brilliant Blue P-3R

Reactive Blue K-3R

Reactive brilliant Blue P-3R

Cibacron Blue P-3R

Molecular Formula:C32H23ClN7Na3O11S3

Molecular Weight: 882.19

CAS Registry Number:12236-92-9

Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 3,5-Diamino-2,4,6-trimethylbenzenesulfonic acid condensation, again with 2,4,6-Trichloro-1,3,5-triazine condensation, and finally 3-Aminobenzenesulfonic acid condensation.

Properties and Applications: red light blue. Blue powder, the strong sulfuric acid for red light blue; In a dilute alkali solution to blue. In 20 ℃ solubility of 200 g/L; 50 ℃ when more than 200 g/L solubility. The dyed fabric for the red light blue light. The reactive dyes low, low affinity, solid color rate is 60%. Neutral and alkaline are not suitable for white.

Standard Light Fastness Oxygen bleaching Persperation Fastness Soaping
Fading Stain Fading Stain Fading Stain
ISO 6 4-5 5     4-5  


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