Identification | Back Directory | [Name]
2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-7-(phenylamino)-, monosodium salt | [CAS]
6222-51-1 | [Synonyms]
Mordant Black 52 C.I.Mordant Black 52:C.I.17520 2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-7-(phenylamino)-, monosodium salt | [EINECS(EC#)]
612-962-4 | [Molecular Formula]
C22H15N4NaO7S | [MOL File]
6222-51-1.mol | [Molecular Weight]
502.432 |
Hazard Information | Back Directory | [Preparation]
2-Amino-4-nitrophenol diazotization, in alkaline condition and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling. | [Properties and Applications]
blue black. Soluble in water for magenta, right amount soluble in ethanol for orange brown. In concentrated sulfuric acid for magenta, dilution after red brown. Dye aqueous solution to join concentrated hydrochloric acid have bordeaux red precipitation; Join concentrated sodium hydroxide solution for brown light magenta precipitation.
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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7-8
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4-5
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4-5
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5
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5
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|
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