Name:C.I.Direct Black 122,C.I.36250
Molecular Structure: Multi-azo class
Molecular Weight: 1614.17
CAS Registry Number:16894-32-9
Manufacturing Methods : 2-Methoxy-4-nitrobenzenamine and 5-Amino-2-hydroxybenzoic acid diazo, in alkaline conditions in turn and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid matches, will the nitro reduction, then double nitriding, and 3-Amino-2-hydroxybenzoic acid diazo, In acidic conditions with 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling the product obtained(2 Moore) coupled.
Properties and Applications: blue grey. Blue-black powder. Soluble in water for red light black. Use in cotton, viscose and their blended fabric dyeing, can be in viscose cotton or directly on printing or discharge printing.
|Standard||Acid Resistance||Alkali Resistance||Light Fastness||Soaping||Water|
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