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Specifications
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Appearance |
Gray blue uniform powder |
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Strength |
100% ± 3% of the standard |
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Color light |
Similar to the standard |
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Impurity content of water insoluble matter |
0.5% max |
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Fastness to dyeing on cotton fabrics |
Conforming to standard products |
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Moisture content |
5% max |
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Fineness (residue content through 80 mesh sieve) |
5% max |
Transport Information
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Parameter |
Specification |
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UN Number |
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Class |
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Packing Group |
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H.S. Code |
3204140000303 |
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Stability & Reactivity |
The product is chemically stable under standard ambient conditions. |
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Storage |
Tightly closed. Store in a closed, dry, ventilated place. Keep locked up or in an area accessible only to qualified or authorized persons. |
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Condition to Avoid |
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Package |
Applications of Chicago sky blue 6B丨CAS 2610-05-1
1. Textile Industry
Primary use: As a direct dye for cellulosic fibers (e.g., cotton, rayon).
Known for producing deep blue shades with good substantivity on fibers.
Used in dyeing, printing, and ink formulations where water solubility is essential.
2. Biological and Biochemical Staining
Employed as a histological stain for:
Amyloid in tissues (alternative to Congo Red)
Nerve fibers and brain tissues in neurological studies
Used in electrophoresis as a tracking dye and protein stain.
3. Analytical Chemistry
Functions as a pH indicator in certain analytical procedures.
Utilized in metal ion complexation and colorimetric assays.
4. Environmental and Industrial Monitoring
Serves as a tracer dye in hydrology and industrial applications to track water flow or leakage due to its high visibility and stability.
Benefits
1. High Water Solubility
Easily dissolves in water, forming a vivid blue solution, making it practical for aqueous applications in textiles, biology, and industrial processes.
2. Good Affinity for Cellulose
Exhibits strong affinity to cotton fibers without requiring mordants, simplifying the dyeing process in the textile industry.
3. Effective Biological Marker
Its staining capabilities help in identifying and differentiating cellular and tissue structures, especially in neural tissues and amyloid detection.
4. Stable and Intense Color
Offers strong chromophore stability under light and moderate heat conditions.
Retains color in dilute solutions, which is beneficial for tracing and analytical work.
5. Cost-Effective
Generally inexpensive and readily available, contributing to its popularity in both industrial and scientific contexts.
Summary
Chicago sky blue 6B丨CAS 2610-05-1 is a water-soluble, direct azo dye known for its vivid blue color and high utility across multiple industries. It is widely used in textiles, biological staining, chemical analysis, and as a tracer dye. Its strong fiber affinity, intense color, and biological staining capabilities make it a valuable and versatile compound in both scientific research and commercial applications.
