Chrome Blue K

What is the formula for acid chrome blue K?

The chemical formula representing its structure as a sodium salt of a complex sulfonated azo dye. This metallized dye contains chromium in its molecular structure, which contributes to its excellent lightfastness and washing durability. The compound belongs to the acid mordant dye class, characterized by its ability to form stable complexes with metal ions. Its precise molecular weight is approximately 502.3 g/mol. The presence of sulfonic acid groups makes it water-soluble, while the chromium content enhances its binding properties with protein fibers like wool and silk during the dyeing process.

What is the color code for Chrome blue?

Chrome blue typically corresponds to the color index designation CI 15705, classified as an acid mordant dye. In the Pantone Matching System, similar shades may appear as Pantone 2945 C or 3015 C for solid coated references. The hexadecimal color code for its characteristic deep blue hue approximates #1E4F8B in digital applications. However, the exact shade varies depending on concentration and substrate material. When used on textiles, the final color develops through the chromium mordanting process, creating a deeper and more complex blue than the original dye solution appears. This color variation makes precise standardization challenging across different applications.

What are the applications of the acid chrome blue K?

Acid Chrome Blue K serves primarily as a high-performance dye for protein fibers in the textile industry, particularly for wool and silk dyeing where excellent wash-fastness is required. Its chromium complex makes it valuable for dyeing military uniforms and other fabrics demanding superior color retention. Beyond textiles, it functions as a biological stain in microscopy for specific tissue staining procedures. The dye also finds use in leather processing for high-quality blue finishes. Some specialized applications include coloring paper products and as a colorant in certain inks. Its metal-complex properties make it unsuitable for food or cosmetic applications due to potential chromium release.