| Identification | Back Directory | [Name]
Direct Violet 12 | [CAS]
2429-75-6 | [Synonyms]
C.I.22550
Direct Violet O
Direct Violet 12
Oiacotton Ciolet X
Japanol Violet Extra
C.I. Direct violet 12
Mitsui Direct Violet R
C.I.Direct Violet 12:C.I.22550
Direct Violet 12 ISO 9001：2015 REACH
3,3'-[(1,1'-Biphenyl-4,4'-diyl)bis(azo)]bis[7-amino-4-hydroxy-2-naphthalenesulfonic acid sodium] salt | [Molecular Formula]
C32H25N6NaO8S2 | [MDL Number]
MFCD31563278 | [MOL File]
2429-75-6.mol | [Molecular Weight]
708.7 |
| Hazard Information | Back Directory | [Preparation]
4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid (2 Moore) coupled. | [Properties and Applications]
purple. Deep smoked uniform powder. Soluble in water for violet black, soluble in ethanol for product red. In the strong sulfuric acid as dark blue, diluted into dark purple. The dye solution to join strong hydrochloric acid for Red sauce or violet black, precipitation; Add thick sodium hydroxide solution for violet black, precipitation. Cellulose fiber of dyeing, the dye devoured the gender is good, in the 80 ~ 100 ℃ maximum when affinity. Hard to more sensitive. Mainly used for cotton, cellulose fiber fabrics such as glue of dyeing, also can be used for paper dyeing.
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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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4-5
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1-2
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2
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1-2
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AATCC
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2
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5
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2
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1-2
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2
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