Direct Green 12
Name:C.I.Direct Green 12,C.I.30290
Molecular Structure: trisazo class
C.I.Direct Green 12,C.I.30290,CAS 6486-55-1,836.59,C34H21Cl2N7Na2O8S2
Molecular Formula:C34H21Cl2N7Na2O8S2
Molecular Weight: 836.59
CAS Registry Number:6486-55-1
Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first in alkaline conditions and 2,5-Dichlorobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupled the product of three, and then coupled with phenol.
Properties and Applications: dark blue light green. Soluble in water for the green, soluble in ethanol, easily soluble in soluble fiber element, slightly soluble in acetone. The strong sulfuric acid for blue-ray purple, after dilution of dark precipitation; In nitric acid for Brown light violet color, then it is black; In 10% of sodium hydroxide solution for green light black.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 5 | 4-5 | 4-5 | 2 | 2-3 | ||
| AATCC | 5 | 3 | 3 | 3 | 2-3 | ||
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