red. Soluble in water for red, hardly soluble in ethanol and acetone. The strong sulfuric acid for orange red to red brown, diluted the pale orange. Its water solution and strong hydrochloric acid for red, have precipitation; Add thick sodium hydroxide solution for purplish red color.
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
6
|
2-3
|
5
|
3
|
1
|
4
|
3
|
1
|