Direct Blue 110
Name:C.I.Direct Blue 110,C.I.34125
Molecular Structure: trisazo class
Molecular Formula:C36H22N7Na3O10S3
Molecular Weight: 877.77
CAS Registry Number:8003-54-1
Manufacturing Methods : 3-Aminobenzenesulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and Naphthalen-1-amine coupling, product to diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications: dark blue to the navy. Soluble in water for violet black, slightly soluble in alcohol. The strong sulfuric acid for dark purple to black, diluted for purple. The dye solution to join strong hydrochloric acid have precipitation of dark; Add thick sodium hydroxide solution have dark purple precipitation.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4-5 | 4-5 | 5 | 2-3 | 3 |
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