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| 2-Naphthalenesulfonic acid, 3-[(5-chloro-2-hydroxy-3-nitrophenyl)azo]-4-hydroxy-7-(phenylamino)-, monosodium salt Basic information |
| 2-Naphthalenesulfonic acid, 3-[(5-chloro-2-hydroxy-3-nitrophenyl)azo]-4-hydroxy-7-(phenylamino)-, monosodium salt Chemical Properties |
| 2-Naphthalenesulfonic acid, 3-[(5-chloro-2-hydroxy-3-nitrophenyl)azo]-4-hydroxy-7-(phenylamino)-, monosodium salt Usage And Synthesis |
Preparation | 2-Amino-4-chloro-6-nitrophenol diazotization, in alkaline condition and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling. | Properties and Applications | Blue ash to blue black. Soluble in water for dark purple, soluble in ethanol for dark purple. In concentrated sulfuric acid to purple, after dilution for red brown. Dye aqueous solution to join concentrated hydrochloric acid for bordeaux red; Join concentrated sodium hydroxide solution for dark purple.
Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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Alkali
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Acid
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ISO
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5
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6
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5
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5
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5
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5
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5
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| 2-Naphthalenesulfonic acid, 3-[(5-chloro-2-hydroxy-3-nitrophenyl)azo]-4-hydroxy-7-(phenylamino)-, monosodium salt Preparation Products And Raw materials |
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