disodium 3,3'-[cyclohexylidenebis[(2-methoxy-4,1-phenylene)azo]]bis(4,6-dihydroxynaphthalene-2-sulphonate) Chemical Properties

EPA Substance Registry System

2-Naphthalenesulfonic acid, 3,3'-[cyclohexylidenebis[(2-methoxy-4,1-phenylene)azo]]bis[4,6-dihydroxy-, disodium salt (6459-69-4)

disodium 3,3'-[cyclohexylidenebis[(2-methoxy-4,1-phenylene)azo]]bis(4,6-dihydroxynaphthalene-2-sulphonate) Usage And Synthesis

Chemical Properties

Dissolved in water, the aqueous solution is date-red, add concentrated hydrochloric acid color remains unchanged, still date-red; add concentrated sodium hydroxide solution is wine-red. Dissolved in ethanol is magenta color. Dark blue in concentrated sulfuric acid, ruby red after dilution.

Preparation

1,1-Bis(3-methoxy-4-aminophenyl)cyclohexane double nitriding, and 4,6-Dihydroxynaphthalene-2-sulfonic acid?(2 Moore) coupled.

Properties and Applications

Claret. Deep dark reddish brown powder, soluble in water, slightly soluble in ethanol for product red. The strong sulfuric acid dyes for blue, diluted into red. The water solution is purple caramel, add after strong hydrochloric acid color unchanged; Add thick sodium hydroxide solution to red wine. Levelness and white sex medium. Copper ions in dyeing color shade the dark, encounter iron ion colored light blue and dark micro. Suitable for wool, silk, polyamide fiber and its blended fabric dyeing and printing directly, can also be used for leather shading. General for dyed dark.

disodium 3,3'-[cyclohexylidenebis[(2-methoxy-4,1-phenylene)azo]]bis(4,6-dihydroxynaphthalene-2-sulphonate) (6459-69-4)Related Product Information

• ACID RED 1
• Acid Red 315
• Sulforhodamine B
• Acid Red 215
• Acid Red 186
• sodium 3-[[4-(benzoylethylamino)-2-methylphenyl]azo]-4-hydroxynaphthalene-1-sulphonate
• sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate
• Acid Red 18
• Acid Red 111
• Acid Red 251
• Acid Red 142
• Acid Red 27
• ALIZARIN RUBINOL R
• Weak Acid Scarlet F-3GL
• Weak Acid Red 2BS