Acid Black 41 Usage And Synthesis

Preparation

4-Nitrobenzenamine diazo, in acid conditions coupled with 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 4-Aminobenzenesulfonic acid to diazo, in alkaline conditions and formation of single accidentally coupled nitrogen compounds.

Properties and Applications

blue and black. Soluble in water as dark blue to blue-black, easily soluble in soluble fiber element, slightly soluble in alcohol, insoluble in other organic solvents. The strong sulfuric acid for dark olive green to, diluted as dark blue precipitation; In nitric acid for green precipitation, and then into a chestnut; In 10% of sodium hydroxide solution for light blue solution. In water solution to join strong hydrochloric acid for dark blue; Add sodium hydroxide solution as dark blue.

Acid Black 41()Related Product Information

• ACID BLACK 29
• Benzoic acid, 4-[[7-[[4-[[4'-[[4-[(7-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo]-5-methoxy-2-methylphenyl]azo]-3,3'-disulfo[1,1'-biphenyl]-4-yl]azo]-2-methoxy-5-methylphenyl]azo]-8-hydroxy-6-sulfo-2-naphthalenyl]amino]-, hexasodium salt
• disodium 4-amino-5-hydroxy-3-[(2-methyl-5-nitrophenyl)azo]-6-(phenylazo)naphthalene-2,7-disulphonate
• tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate
• 2,7-Naphthalenedisulfonic acid, 4-[[4-[(3,6-disulfo-1-naphthalenyl)azo]-6(or 7)-sulfo-1-naphthalenyl]azo]-3-hydroxy-, pentasodium salt
• Sulphon Black RA
• FAST SULPHON BLACK F
• Chromate(3-), bis[3-(hydroxy-κO)-4-[[2-(hydroxy-κO)-1-naphthalenyl]azo-κN1]-7-[[(4-methylphenyl)sulfonyl]amino]-1-naphthalenesulfonato(3-)]-, disodium hydrogen
• sodium 4-hydroxy-5-[(2-methoxy-4-nitrophenyl)azo]-6-(phenylamino)naphthalene-2-sulphonate