Solvent Blue 4
Name:C.I.Solvent Blue 4,C.I.44045:1
Molecular Structure: triarylmethane class
Molecular Formula:C33H33N3O
Molecular Weight: 487.63
CAS Registry Number:6786-83-0
Manufacturing Methods :(a) 4-(Dichloro(4-(dimethylamino)phenyl)methyl)-N,N-dimethylbenzenamine and Naphthalen-1-amine condensation; (b) Bis (4 – (dimethylamino) phenyl) methanol and Naphthalen-1-amine condensation, the product into N – nitroso derivatives and oxidation, remove nitroso.
Properties and Applications:brilliant blue. Soluble in water is blue, soluble in ethanol for blue. In concentrated sulfuric acid to red light brown, dilution after yellow to green and then to blue. Dye aqueous solution to join sodium hydroxide have dark red light brown precipitation
Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
Melting point | Stable | |||||
ISO | Poor | >180 | 110 | Insoluble | No change | Dissole |
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