blue light purple. Soluble in water. In concentrated sulfuric acid to dark red light purple, dilution after yellow. Dye aqueous solution to join concentrated hydrochloric acid don’t change color; Add sodium hydroxide as Red ocher solution.
|
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
4-5
|
6-7
|
4
|
3
|
4-5
|
4-5
|
5
|
