Amido Green Black B CAS 5850-39-5

What is Amido Green Black B CAS 5850-39-5?

Amido Green Black B CAS 5850-39-5 is a complex organic bis-azo dye formulated as a highly water-soluble disodium salt. Typically supplied as a dark bluish-green to greenish-black solid powder, it is manufactured through a precise, multi-step sequential diazo coupling process involving 4-nitrobenzenamine, specific naphthalene-disulfonic acid derivatives, and aniline, followed by a final reduction phase. Upon dissolution in water, it yields a deep, dark bluish-green solution. Renowned for its strong structural stability and dynamic chemical responsiveness, it serves as a highly reliable industrial colorant for natural protein fibers, synthetic polyamides, and various specialty commercial materials.

Specifications

Features

• Deep Green-Black Pigmentation – Delivers a high-strength, consistent dark bluish-green to black shade, ensuring uniform color distribution and deep dye penetration into target substrates.
• Predictable Chemical Reactivity – Exhibits distinct visual color shifts in extreme chemical environments, turning purple upon exposure to concentrated sodium hydroxide, and showing a brown hue in concentrated nitric acid.
• Environmental Responsiveness – Possesses unique chemical properties that allow it to be effectively decolorized through advanced industrial treatments, specifically ultrasonic irradiation paired with peroxide.

Applications

• Textile Dyeing & Printing – Extensively applied in the commercial textile sector for the direct, high-quality dyeing and precise printing of wool, silk, wool-blended fabrics, and synthetic polyamide (nylon) fibers.
• Leather Processing – Serves as a highly dependable commercial colorant for providing deep, uniform shading and durable, long-lasting coloration in the industrial leather manufacturing sector.
• Paper Manufacturing – Utilized as an effective, highly soluble aqueous tinting agent for achieving deep, consistent green-black shading in specialty commercial paper products and packaging.

Packaging

Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.