Properties and Applications: bright blue. Blue powder, slightly soluble in cold water, soluble in hot water and ethanol are bright blue, tungsten lighting in under the observation for good blue. The strong sulfuric acid dyes in a golden, dilute to pale yellow green . The water solution is bright blue, add sodium hydroxide to shallow blue, have precipitation. Discharge of copper ions in dyeing color becomes the dark, encounter iron ion colored light is dark. Used for wool, silk and wool blended fabric dyeing and printing. Can also be used in leather color. The heavy metal salt can be used as organic pigments. The product are used for loose hair, tops and ground.

Acid Blue 15