| Name | Reactive Brilliant Blue M-BR |
| Synonyms | Reactive Brilliant Blue M-BR |
| Molecular Formula | C31H21ClN7O14S4.3Na |
| Physical and Chemical Properties | Chemical properties dark blue powder. The solubility in water (50 ℃) is 60g/L. The aqueous solution is pure blue, and the addition of 1mol/L sodium hydroxide solution is light lake blue, accompanied by a small amount of precipitation, followed by the addition of hydrosulfite and warm brown, accompanied by precipitation, and then adding sodium perborate is reddish brown, There is still precipitation. It is red and dark blue in concentrated sulfuric acid, and bright blue after dilution. It is yellowish brown in concentrated nitric acid and still yellowish brown after dilution. |
| Use | 1, reactive brilliant blue M-BR is suitable for cotton, viscose fiber dyeing, the dyeing methods are applicable. High affinity and moderate fixation rate. It is also suitable for direct and anti-dyeing printing of cotton and viscose fiber fabrics. It is mainly used for direct printing of cotton fabric, which can be used with active golden yellow M-G and brilliant red M-8B to form the three primary colors, to print various deep and thick colors, and the fastness is good. Used for viscose fiber, silk printing, with medium and light blue flower better. It is used for direct printing of Wei/cotton blended fabric, with good freshness, but slightly light color, with silver thread and flower. 2, used for cotton, hemp, viscose and other fiber dyeing and printing |
Using bromine, 2, 4-diaminobenzenesulfonic acid, cyanuric chloride, and p (2-sulfate ethyl sulfone group) aniline as raw materials, first bromine is combined with 2, 4-diaminobenzenesulfonic acid is condensed for the first time, then it is condensed with cyanuric chloride for the second time, and finally (2-sulfate ethyl sulfone group) aniline is added for the third time to obtain. The finished product is salted out, filtered, dried and crushed.