Name | Mordant Brown 49 |
Synonyms | C.I. 13265 Mordant Brown 49 Acid Chome Brown R C.I.Mordant Brown 49 Acid mordant Brown 49 Acid Anihracene Brown R |
CAS | 8005-84-3 |
Molecular Formula | C12H9N6NaO8S |
Molar Mass | 420.29 |
Physical and Chemical Properties | Chemical properties red light brown powder. It is orange brown when dissolved in water, slightly soluble in ethanol. It is magenta in concentrated sulfuric acid, and turns to orange to golden yellow after dilution. The aqueous solution is yellow and brown with concentrated hydrochloric acid; the concentrated sodium hydroxide solution is orange brown. |
Use | Mainly used for silk, wool and textile dyeing. |
after diazotization of amino picric acid, it is coupled with m-diaminobenzene sulfonic acid, and then salting out, filtering, drying and other processing processes to obtain the product. The dyeing fastness of the product on wool: sun drying level 5, soaping, washing, perspiration, ironing level 5, carbonization level 2-3, cooking level 3. Raw material consumption (kg/t) sodium amino picric acid 590 hydrochloric acid 240 sodium nitrite 190 m-diaminobenzenesulfonic acid 560 acetic acid 15 sodium acetate 85 soda ash 120