Acid black 2 is black and shining particle, soluble in water easily, soluble in alcohol and blue in alcohol. Blue in dense sulphuric acid, purple precipitate after dilution. Blue purple in water and dark purple precipitate with NaOH
Acid Black 2 is recommended for coloring for leather, sheep’s wool, silk, cotton, flax, metallic products, water base inks and stationery
| Specification | Value |
| Appearance | Black powder |
| Shade | Similar to std. |
| Concentration, % | 100 |
| Moisture, % | 6.0 max |
| Ash, % | 17.0 max. |
