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Acid Brown 4

Acid Brown   4 Structural

What is Acid Brown 4?

Preparation

N-(4-aminophenyl)acetamide diazo, and 5-Hydroxynaphthalene-1-sulfonic acid coupling, and then remove acetyl hydrolysis.

Flammability and Explosibility

Non flammable

Properties and Applications

red light brown. Soluble in water for red light brown, soluble in ethanol for yellow light brown. The strong sulfuric acid for wine red, dark blue, diluted to the red orange. Strong hydrochloric acid solution to join a brown orange precipitation; Add thick sodium hydroxide solution for palm orange.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 3 3-4 2 2 3 1-2

Properties of Acid Brown 4

Density  1.447[at 20℃]
Water Solubility  18.67g/L at 20℃

Safety information for Acid Brown 4

Computed Descriptors for Acid Brown 4

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Revo One

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