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HomeProduct name listSolvent Brown 5

Solvent Brown 5

Solvent Brown 5 Structural

What is Solvent Brown 5?

Preparation

Naphthalen-1-amine diazotization, and Naphthalen-1-ol?coupling.

Properties and Applications

dark brown (NC raw lacquer). Soluble in ethanol for yellow brown. In concentrated sulfuric acid for deep green light black, dilution after blue black, then there is dark brown precipitation. Dye alcohol solution to join concentrated hydrochloric acid don’t change; Add 5% sodium hydroxide solution for blue light red. Used for oil, paraffin wax, cellulose and synthetic resin paint color.

Standard Light Fastness Heat-resistant(℃) water Sodium Carbonate(5%) Hydrochloric acid(5%)
Melting point Stable
ISO Poor 170 100≥100

Sublimation

Insoluble Good Good

Properties of Solvent Brown 5

Boiling point: 551.0±33.0 °C(Predicted)
Density  1.20±0.1 g/cm3(Predicted)
pka 8.32±0.40(Predicted)
EPA Substance Registry System 1-Naphthalenol, 4-(1-naphthalenylazo)- (2653-72-7)

Safety information for Solvent Brown 5

Computed Descriptors for Solvent Brown 5

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