| Name | Acid Orange 89 |
| Synonyms | Acid Orange 89 Acid Orange 89 C.I. Acid Orange 86 C.I. Acid orange 89 LEATHERSPRAYINGORANGE2RL Leather Spray 2NG Orange 2RL |
| CAS | 12269-95-3 |
| Molecular Formula | C32H22N10O8.Cr.Na |
| Physical and Chemical Properties | Orange powder. Slightly soluble in water, soluble in ethylene glycol ether, DMF, ethanol and other organic solvents, the solution is orange brown. |
| Application | leather spraying orange 2RL is mainly used for spraying or curtain finishing of natural leather such as pigskin, leather and sheep skin, it is especially suitable for the spraying and coloring of aniline leather. |
| production method | with 2-amino-4-nitrophenol and 1-phenyl-3-methyl-5-pyrazolone as raw materials, first, 2-amino-4-nitrophenol was diazotized, and then coupled with 1-phenyl -3-methyl -5-pyrazolone, followed by adding chromium alum for complexation, filtered, dried, the raw dye was pulverized to obtain a dry powder. The dry powder of the original dye dissolved in ethylene glycol ether, ethanol mixed solvent, after sedimentation filtration, the solution can be packaged.. |