Direct Blue 130
Name:C.I.Direct Blue 130,C.I.27110
Molecular Structure: Double azo class
Molecular Formula:C29H23N5Na2O9S2
Molecular Weight: 695.63
CAS Registry Number:6226-70-6
Manufacturing Methods : N-(4-amino-2-methoxyphenyl)-3-oxobutanamide diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, its product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then hydrolyzed acetamido.
Properties and Applications: blue. Soluble in water for hidden cyan, slightly soluble in alcohol for green light blue. In the dark for the strong sulfuric acid, diluted for purple. The dye solution to join strong hydrochloric acid for violet black, precipitate; With strong for sodium hydroxide solution of dark, precipitation.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4 | 4 | 3 | 4 | 4-5 | ||
AATCC | 5 | 5 | 4 | 3-4 | 5 |
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