CHLORAZOL BLACK LF
- CAS NO.：2429-83-6
- Empirical Formula: C35H30N9NaO7S2
- Molecular Weight: 775.79
- MDL number: MFCD00059547
- EINECS: 219-392-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-31 14:38:37
What is CHLORAZOL BLACK LF?
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first with aniline diazo,In alkaline conditions with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid??coupling monoazo compound obtained under acidic conditions in the coupling?, then and 4-Methylbenzene-1,3-diamine coupling.
Properties and Applications
black. water-soluble ash light black,, and adequate soluble in ethanol (for blue-ray grey) and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid in the dark for the light blue, red red after diluted sauce to black precipitation; In nitric acid solution for brown (not completely); In strong hydrochloric acid for wine solution (not completely).
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 3 | 3 | 3 | 2 | 3 | ||
| AATCC | 3 | 3 | 4 | 3 | 2 | ||
Properties of CHLORAZOL BLACK LF
| Colour Index | 30245 |
| EPA Substance Registry System | C.I. Direct Black 4, disodium salt (2429-83-6) |
Safety information for CHLORAZOL BLACK LF
Computed Descriptors for CHLORAZOL BLACK LF
New Products
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