Acid Green 1 CAS 19381-50-1

What is Acid Green 1 CAS 19381-50-1?

Acid Green 1 CAS 19381-50-1 is an organometallic acid dye formulated as an iron sodium salt. Typically supplied as a dark green to black crystalline powder, it belongs to the nitroso dye class and is manufactured through the nitrosation of 6-hydroxynaphthalene-2-sulfonic acid followed by conversion into a ferric sodium complex. It dissolves readily in water to yield a distinct yellow-green to blue-green solution. Noted for its unique infrared light absorption properties and excellent light fastness, it is highly valued as both an industrial commercial colorant and a specialized laboratory biological stain.

Specifications

Features

• Exceptional Light Fastness – Demonstrates outstanding structural stability and excellent absorption of sunlight, particularly infrared light, ensuring long-lasting color retention without premature fading.
• Superior Aqueous Solubility – Dissolves efficiently in water without aggregating and notably maintains high solubility and stability even in saturated salt solutions.
• Predictable Reactivity – Exhibits specific, visual color shifts in strong chemical environments, turning yellow-brown in concentrated sulfuric acid and blue-green in aqueous sodium hydroxide.

Applications

• Textile & Leather Dyeing – Broadly utilized in the commercial textile industry for the high-quality, even dyeing and printing of wool, silk, and nylon fabrics, as well as specialized leather products.
• Biological & Histological Research – Serves as a vital biological stain in clinical histology, hematology, and diagnostic assay manufacturing, particularly utilized for staining collagen and complex animal tissue.
• Industrial Processing – Applied extensively in the commercial solar salt industry to optimize solar evaporation via infrared absorption, and frequently serves as a target model in advanced wastewater pollutant degradation research.

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.