red light yellow. Soluble in water yellow, not soluble in alcohol. The strong sulfuric acid for blu-ray in red, red for the product after diluted. Its water solution with hydrochloric acid into purple; Add sodium hydroxide discoloration. Used as indicator (pH range 7.4 8.6).
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
4
|
|
|
3
|
|
|
|
|