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| 2-Hydroxy-5-[[4'-[(1,6-dihydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt Basic information |
| 2-Hydroxy-5-[[4'-[(1,6-dihydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt Chemical Properties |
| 2-Hydroxy-5-[[4'-[(1,6-dihydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt Usage And Synthesis |
Preparation | 4-(4-Aminophenyl)benzenamine double nitriding, respectively with 2-Hydroxybenzoic acid and 4,7-Dihydroxynaphthalene-2-sulfonic acid?coupling. | Properties and Applications | blue-ray red. Soluble in water for red, moderate soluble in alcohol is palm red light orange to orange. In the dark for the strong sulfuric acid, diluted for Shallow red time The dye solution to join strong hydrochloric acid for brown, have precipitation; Add thick sodium hydroxide solution have red precipitate.
Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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ISO
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3-4
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5
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3
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1-2
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1-2
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| 2-Hydroxy-5-[[4'-[(1,6-dihydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid sodium salt Preparation Products And Raw materials |
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