brilliant red. In concentrated sulfuric acid for brown, after diluted solution for light brown. C.I. 13900 with another group were divided we C.I. Solvent Red 36,C.I. Solvent Red ?79,C.I. Solvent Red 109, C.I. 13900 also for C.I. Acid Yellow 99 and C.I. Solvent Yellow 19 and structure Numbers.
Standard
|
Light Fastness
|
Heat-resistant(℃)
|
water
|
Sodium Carbonate(5%)
|
Hydrochloric acid(5%)
|
Melting point
|
Stable
|
ISO
|
Good
|
|
180
|
Insoluble
|
Well
|
No change
|