| Molecular Formula | C48H33N8NaO18S6 |
| Molar Mass | 1225.18 |
| Physical and Chemical Properties | Chemical properties orange yellow powder. Easily soluble in water, the aqueous solution is dark yellow and slightly sensitive to hard water. When dyeing, the color light of copper ions changes slightly, and the color light of iron ions is yellow and dark. |
| Use | Use direct yellow ARL is suitable for dyeing cotton, viscose fiber and its blended fabric, and is generally not used for printing. Dyeing cotton, viscose fiber bright red yellow, red light, good dyeing rate, poor dye transfer. It can be used in the same bath with disperse dyes to dye polyester and viscose blended fabrics at high temperature. Used for cotton or viscose fiber and other fibers in the same bath dyeing, silk, wool color is very light, nylon slightly stained, polyester, acrylic, acetate fiber does not stain. |
| Raw Materials | Naphthionic acid 1,2-Diphenylethylenediamine |
| EPA chemical information | C. I. Direct Yellow 106 (12222-60-5) |
Using 4-amino -4 '-nitrostilbene -2,2'-disulfonic acid and 1-naphthylamine -4-sulfonic acid as raw materials, first 4-amino -4 '-nitrostilbene -2,2'-disulfonic acid is diazotized, then coupled with 1-naphthylamine -4-sulfonic acid, then oxidized and cyclized, and. The finished product is salted out, filtered, dried and crushed.