Molecular Formula | C35H26N10O8S2.2Na |
Molar Mass | 824.764 |
Physical and Chemical Properties | Black powder. |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | direct black ANBA is suitable for dyeing and printing of cotton and viscose fibers, as well as leather dyeing. mainly used for dyeing cellulose fiber fabrics such as cotton and viscose |
production method | using 4,4 '-diaminobenzoyl aniline, m-phenylenediamine, h acid and aniline as raw materials, first 4,4'-diaminobenzoyl aniline is doubly nitrided, then coupled with m-phenylenediamine and h acid respectively, and then diazotized aniline, coupled with the aforementioned double coupling product to obtain the final product. The finished product is salted out, filtered, dried and crushed.. |