Acid Red 73 CAS# 5413-75-2

Yellow light red. Yellow light red powder. Soluble in water red solution, soluble in ethanol and soluble fiber element, soluble in acetone, insoluble in other organic solvents. Meet strong sulfuric acid is red purple, diluted red brown in precipitation; Nitric acid in a blue, orange and brown to olive. Its water solution and strong hydrochloric acid generation dark red brown precipitation; Add sodium hydroxide solution generation dark brown precipitation. In dyeing copper and iron ions are darker color. Discharge the gender is good. Mainly used for wool, silk, paper and leather dyeing. Can also be used for plastic, wood, spices, electrical-controlled aluminum, medicine color. Can make the ink, the heavy metal salt can be used as pigment.