dark yellow. Soluble in water for green light yellow, slightly soluble in Etanol. In concentrated sulfuric acid to green light yellow, dilution after light green light yellow. Dye aqueous solution to join concentrated hydrochloric acid for green yellow; Join concentrated Sodium hydroxide solution for gold.
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
Alkali
|
Acid
|
ISO
|
4
|
3
|
|
|
4
|
4-5
|
4
|