Solvent Red 32
Name:C.I.Solvent Red 32,C.I.26766
Molecular Structure: Double azo class
Molecular Formula:C24H18N4Na2O7S2
Molecular Weight: 584.53
CAS Registry Number:6406-53-7
Manufacturing Methods :2-Methyl-4-(o-tolyldiazenyl)benzenamine diazotization, with 4-Hydroxynaphthalene-2,7-disulfonic acid coupling, and then translate into dicyclohexyl amine salt.
Properties and Applications:blue light red. Dark red powder. Soluble in water for magenta to red, soluble in ethanol to red. In concentrated sulfuric acid for dark blue, after dilution for brown. Dye aqueous solution to join concentrated hydrochloric acid for orange; Join strong caustic for red sauce. Used for plastic, grease, ink and paint color.
Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
Melting point | Stable | |||||
ISO | Good | 120(1hr) | Well | Poor | Poor |
List of Suppliers:
Zapon Fast Red CB(IG Farbenindustrie AG)
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