dark yellow red. Dark yellow red powder. Soluble in water for yellow brown. In concentrated sulfuric acid for orange red, after diluted into yellow orange, precipitation, In concentrated hydrochloric acid for yellow brown, precipitation. Dye aqueous solution to join sodium hydroxide as yellow. Mainly used for wool, silk, nylon of post-mordant dyeing, also used for cobalt medium printing.
|
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
5
|
6-7
|
4-5
|
4
|
5
|
4-5
|
5
|
|
AATCC
|
3
|
6
|
3-4
|
|
4-5
|
|
|
