What is Acid Blue 113 CAS 3351-05-1?
Acid Blue 113 CAS 3351-05-1 is a water-soluble diazo dye typically formulated as a sodium salt. Supplied as a very dark blue to black solid powder, it dissolves efficiently in water to produce a distinct purplish-navy blue solution. Manufactured through a precise sequence of diazo coupling reactions involving naphthalen-1-amine and benzenesulfonic acid derivatives, it possesses a high chemical affinity for protein-based and polyamide fibers. Beyond commercial fabric dyeing, it is also highly valued as a staining agent in specific hematological and histological diagnostic assays.
Specifications
| Item |
Value |
| Appearance |
Very dark blue to black solid / powder |
| Density |
0.9 g/cm3 (at 20 °C) |
| Water Solubility |
100 g/L (at 20 °C) |
| Stability |
Hygroscopic, light sensitive |
| Storage Conditions |
Room temperature, dry environment |
Features
- Distinct Navy Blue Shade – Delivers a deep, high-strength red-light navy blue color, ensuring robust and consistent visual payoff across various colored substrates.
- High Aqueous Solubility – Dissolves readily in water and slightly in ethanol and DMSO, allowing for seamless integration into liquid dye baths and specialized biological staining solutions.
- Predictable Chemical Reactivity – Exhibits distinct visual color shifts in extreme pH environments, changing to dark green-light blue in sulfuric acid and purplish-red in thick sodium hydroxide.
Applications
- Textile & Tannery Dyeing – Extensively utilized in the commercial textile industry for dyeing natural wool, silk, and synthetic polyamide fibers, as well as providing deep coloration in leather processing.
- Medical & Diagnostic Research – Applied as a critical biological shading agent in histology, hematology, and the precise manufacturing of specialized medical diagnostic assays.
- Environmental Degradation Studies – Because of its complex and resilient diazo structure, it frequently serves as a reference pollutant in laboratory studies focused on the adsorption and mineralization of aromatic amines from industrial effluents.
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.