dark brown. Soluble in water for orange to red light brown, right amount soluble in ethanol and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid for deep orange to red, for Light brown after diluted to orange precipitation; In concentrated nitric acid for Light brown, and then become yellow. Dye aqueous solution and concentrated hydrochloric acid for brown; Crowding sodium hydroxide solution for orange brown
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
Alkali
|
Acid
|
ISO
|
5
|
5-6
|
5
|
4
|
5
|
5
|
5
|
AATCC
|
Dry 3,wet 5
|
6
|
4-5
|
|
5
|
4
|
5
|