Acid Black 43
Name:C.I.Acid Black 43,C.I.15691
Molecular Structure: Single azo,Metal Complexes
C.I.Acid Black 43,C.I.15691,CAS 6370-16-7,411.32,C16H10N3NaO7S
Molecular Formula:C16H10N3NaO7S
Molecular Weight: 411.32
CAS Registry Number:6370-16-7
Manufacturing Methods : 3-Amino-4-hydroxy-5-nitrobenzenesulfonic acid diazo, and Naphthalen-2-ol coupling, and then with aqueous acid chromium heating together, and in 100 ℃ keep 3 ~ 5 hours, make all of its formation chromium complex (1 to 2 Moore single atoms chromium azo dyes).
Properties and Applications: red light black. Soluble in water for black purple. The strong sulfuric acid for green light black; After diluted for purple brown precipitation. In water solution to join hydrochloric acid is palm orange; With strong sodium hydroxide solution for wine red to deep red wine.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 7-8 | 3-4 | 3-4 | 4-5 | 3 | 4-5 | ||
List of Suppliers:
[…] C.I.Acid Black 43 […]