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HS Code |
336551 |
| Chemical Name | Direct Fast Yellow 4GL |
| Synonyms | Direct Yellow 4GL, C.I. 40084, Direct Yellow 12 |
| Cas Number | 2870-32-8 |
| Molecular Formula | C28H20N6Na2O8S2 |
| Molecular Weight | 710.61 |
| Appearance | Yellow to orange powder |
| Solubility In Water | Soluble |
| Application | Textile dyeing, paper, leather |
| Melting Point | Decomposes |
| Dye Class | Direct dye |
| Light Fastness | Moderate |
| Ph Stability | Stable in neutral to slightly alkaline conditions |
| Maximum Absorption Wavelength | 400-430 nm |
As an accredited Direct Fast Yellow 4GL factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging is a sealed 25 kg fiber drum, labeled "Direct Fast Yellow 4GL" with hazard symbols, batch number, and manufacturer details. |
| Shipping | Direct Fast Yellow 4GL is shipped in tightly sealed, moisture-proof bags or drums to prevent contamination and degradation. The containers are labeled according to regulatory requirements, and transported in a cool, dry environment. Handle with protective equipment to avoid exposure. Shipping complies with relevant chemical safety and hazardous materials regulations. |
| Storage | Direct Fast Yellow 4GL should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers. Protect from moisture and direct sunlight. Avoid sources of ignition. Proper labelling and secure storage minimize risks of accidental exposure or spills. Use appropriate personal protective equipment when handling or transferring the chemical. |
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Purity 98%: Direct Fast Yellow 4GL with 98% purity is used in cotton fiber dyeing, where it ensures uniform and brilliant yellow coloration. Molecular weight 699 g/mol: Direct Fast Yellow 4GL with molecular weight 699 g/mol is used in cellulosic fabric printing, where it provides consistent shade reproducibility. pH stability 6-8: Direct Fast Yellow 4GL stable at pH 6-8 is used in textile exhaust dyeing, where it achieves high fixation rate and wash fastness. Particle size ≤5 μm: Direct Fast Yellow 4GL with particle size ≤5 μm is used in aqueous dye slurry preparation, where it enhances dispersion and smoothness of application. Light fastness grade 4-5: Direct Fast Yellow 4GL with light fastness grade 4-5 is used in outdoor textile applications, where it offers resistance to fading under sunlight exposure. Solubility in water >60 g/L: Direct Fast Yellow 4GL with solubility greater than 60 g/L is used in continuous dyeing processes, where it enables high-concentration coloration with minimal residue. Melting point 280°C: Direct Fast Yellow 4GL with a melting point of 280°C is used in heat setting operations, where it maintains thermal stability without color degradation. Stability temperature up to 120°C: Direct Fast Yellow 4GL stable up to 120°C is used in high-temperature textile printing, where it ensures dye integrity and color consistency. Residual salt <1%: Direct Fast Yellow 4GL containing less than 1% residual salt is used in precision dye recipes, where it promotes reproducible results and reduces processing impurities. Viscosity grade low: Direct Fast Yellow 4GL with low viscosity grade is used in pad dyeing techniques, where it provides optimal flow and rapid fiber penetration. |
Competitive Direct Fast Yellow 4GL prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
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