Molecular Formula | C28H20ClN9O16.4Na |
Physical and Chemical Properties | Brick red powder or granular. Soluble in water, the solubility of 130g/L (25 C). When staining, iron ion color light turned slightly yellow and dark. |
Use | active yellow 3RS is used for dyeing cotton, viscose and other fibers, and printing of fabrics. It is suitable for the exhaustion dyeing method, the cold-rolled batch method and the one-bath continuous dyeing method. |
production method | with 2-naphthylamine -3,6, 8-trisulfonic acid, M-urinary aniline, cyanuric chloride and m-(β-sulfate ethyl sulfone) aniline as raw materials. First, the M-urinary aniline is condensed with cyanuric chloride, and then 2-naphthylamine -3,6, 8-trisulfonic acid is diazotized and coupled with the aforementioned condensation product, finally, the coupling product is condensed with M (β-sulfate ethyl sulfone) aniline to give the desired product. After salting out, filtration, drying to obtain the finished product.. |