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8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate is a specialized organic compound with several important applications, primarily in the dye and pigment industries.
Items | Specification | Results |
Appearance | Gray to gray-brown powder | Confirm |
Content(dry) % | 80.00 | 80.09 |
Purity（HPLC）% ≥ | 98.00 | 98.11 |
Chromotropic Acid% ≤ | 1.00 | 0.66 |
Omega Acid% ≤ | 0.5 | 0.26 |
T Acid % ≤
| 0.30 | 0.04 |
Thealkali insoluble matter % ≤ | 0.20 | 0.11 |
Moisture % ≤ | 5.00 | 4.88 |
Conclusion | QUALIFIED | |
**8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate** is a specialized organic compound with several important applications, primarily in the dye and pigment industries. Here's an overview of its key uses:
### 1. **Dye Intermediate in Azo Dye Synthesis**
- **Coupling Component:** This compound serves as a coupling agent in the synthesis of azo dyes. Azo dyes are characterized by their vivid colors and are widely used in textile applications. The amino and hydroxyl groups on the naphthol ring facilitate the formation of azo bonds (–N=N–), which are essential for creating the chromophoric structure of azo dyes.
- **Enhanced Solubility:** The presence of sulfonic acid groups increases the water solubility of the compound, making it more effective in aqueous dyeing processes.
### 2. **Production of Reactive and Disperse Dyes**
- **Reactive Dyes:** These dyes form covalent bonds with fibers, providing excellent wash and light fastness. 8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate is used as an intermediate to enhance the reactivity and fixation of these dyes on textile materials.
- **Disperse Dyes:** Utilized primarily for dyeing synthetic fibers like polyester, this compound aids in creating dyes that are finely dispersed in water, ensuring uniform coloration.
### 3. **Pigment Manufacturing**
- **Colorant Production:** Beyond dyes, this compound is used in the formulation of pigments for inks, paints, and coatings. Its naphthol structure contributes to the stability and vibrancy of the colorants.
### 4. **Specialized Applications**
- **Photographic Dyes:** In some cases, derivatives of this compound are employed in photographic processes, although this is a more niche application.
- **Polymer and Resin Coloring:** It is also used to impart color to various polymers and resins used in manufacturing processes.
### 5. **Research and Development**
- **Chemical Studies:** Due to its functional groups, it is often used in research settings to study reaction mechanisms in azo coupling or to develop new dyeing technologies.
### **Summary**
Overall, **8-Amino-1-naphthol-3,6-disulfonic acid monosodium salt monohydrate** is a versatile intermediate in the chemical industry, particularly valued for its role in producing a wide range of dyes and pigments with applications in textiles, inks, paints, and specialized materials. Its chemical structure allows for effective participation in coupling reactions, making it indispensable in the manufacture of high-quality, vibrant colorants.
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