brown light olive to yellow brown. Soluble in water for orange brown, soluble in ethanol for yellow brown. In concentrated sulfuric acid for red brown; In concentrated nitric acid for Pale red – brown, slightly soluble in concentrated hydrochloric acid in for yellow brown; In a dilute sodium hydroxide solution for brown.
|
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
4-5
|
6
|
5
|
3-4
|
5
|
5
|
5
|
