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| 3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt Basic information |
| 3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt Chemical Properties |
| 3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt Usage And Synthesis |
Preparation | 2-Amino-4-chloro-5-nitrophenol diazotization, with 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling. | Properties and Applications | deep green light blue. Soluble in water for purple, slightly soluble in alcohol. In concentrated sulfuric acid for blue to black, dilution after pink to purple. Dye aqueous solution to join concentrated hydrochloric acid for magenta; Join strong caustic for red light blue.
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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5-6
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5
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2
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3
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4
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4-5
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AATCC
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5
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5-6
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5
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5
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5
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5
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| 3-[(5-Chloro-2-hydroxy-4-nitrophenyl)azo]-4,5-dihydroxy-2,7-naphthalenedisulfonic acid disodium salt Preparation Products And Raw materials |
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