Acid Green 27

Colour Fastness Test

Appearance is green powder. Soluble in water, the solution has no tendency to aggregate at room temperature, soluble in o-chlorophenol, slightly soluble in acetone, ethanol, pyridine, insoluble in chloroform, toluene. The dye is dark green in concentrated sulfuric acid, diluted It turns into emerald blue; it is brown in concentrated nitric acid. The aqueous solution is blue, hydrochloric acid is blue, and sodium hydroxide is blue-green.

Used for silk, acrylic, tannin mordant dyeing cotton dyeing, also can be used for leather, paper, hemp and glue directly printing and dyeing, the discharge printing. Can also be used in oil and fat, paint color, also can be used in the preparation of color which used in ink.

Use condition:

Acid Green 27 is used for the dyeing of wool and silk. It has poor leveling and extractability. It is dark when it is dyed with copper ions, and it is yellow when it encounters iron ions and chromium ions.