red light yellow. Soluble in water for orange. The strong sulfuric acid for blue-ray red, diluted for red, and then into a orange solution and the emergence of precipitation. Its water solution with hydrochloric acid appears orange brown precipitation; Add sodium hydroxide for darker brown. Can be used for wool, silk dyeing and printing.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
3
2
2
1
2
4-[[4-[(2,4-Dinitrophenyl)amino]phenyl]azo]benzenesulfonic acid sodium salt 준비 용품 및 원자재