blue. Red light blue powder, soluble in water, but the solution for a long time have placed precipitation phenomenon. The strong sulfuric acid dyes is red light blue, green light blue to dilute; In nitric acid are brown. Water solution is deep blue, add hydrochloric acid or sodium hydroxide are in product blue. Used for wool, silk, polyamide fiber and its blended fabric dyeing,
blue. Red light blue powder, soluble in water, but the solution for a long time have placed precipitation phenomenon. The strong sulfuric acid dyes is red light blue, green light blue to dilute; In nitric acid are brown. Water solution is deep blue, add hydrochloric acid or sodium hydroxide are in product blue. Used for wool, silk, polyamide fiber and its blended fabric dyeing, dyeing scattered hair, tops, yarn packages, socks and knitting yarn and so on, also can be in wool and silk fabric printing directly, it can also be used in leather dyeing.
Phloxine B, often known as phloxine, is a red, water-soluble dye. It is produced from fluorescein, but it is distinct in that it has four bromine atoms in positions 2, 4, 5, and 7 of the xanthene ring and four chlorine atoms in the carboxyphenyl ring.