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HS Code |
692365 |
| Product Name | Direct Congo Red 4BE |
| Cas Number | 573-58-0 |
| Chemical Formula | C32H22N6Na2O6S2 |
| Molecular Weight | 696.66 g/mol |
| Appearance | Red powder |
| Dye Class | Direct dye (azo dye) |
| Solubility | Soluble in water |
| Shade | Reddish |
| Ph Of Solution | 6-7 |
| Application | Textile dyeing |
| Light Fastness | Moderate |
| Maximum Absorption Wavelength | 497 nm |
As an accredited Direct Congo Red 4BE factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging for Direct Congo Red 4BE features a sealed 25 kg fiber drum with an inner plastic liner for moisture protection. |
| Shipping | Direct Congo Red 4BE is shipped in tightly sealed, clearly labeled containers, typically fiber drums or bags lined with polyethylene to prevent moisture absorption. It is handled as a non-hazardous dye but should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances. |
| Storage | Direct Congo Red 4BE should be stored in a tightly sealed container in a dry, cool, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers. Avoid moisture and excessive heat. Proper labeling and secure storage prevent contamination and accidental exposure. Use personal protective equipment when handling, and follow all relevant safety regulations for chemical storage. |
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Dye Purity 96%: Direct Congo Red 4BE with 96% purity is used in textile cotton dyeing, where high purity ensures consistent color intensity and shade uniformity. Molecular Weight 696 g/mol: Direct Congo Red 4BE of 696 g/mol is used in laboratory staining protocols, where defined molecular weight guarantees reproducible staining results. Particle Size <50 microns: Direct Congo Red 4BE with a particle size less than 50 microns is used in paper coloring applications, where fine dispersion improves surface smoothness and color uniformity. Water Solubility 50 g/L at 25°C: Direct Congo Red 4BE with a solubility of 50 g/L at 25°C is used in aqueous ink formulations, where high solubility facilitates rapid dissolution and easy processing. pH Stability Range 4–7: Direct Congo Red 4BE stable within pH 4–7 is used in biological indicator preparations, where pH stability ensures reliable and repeatable color change performance. Light Fastness Grade 3: Direct Congo Red 4BE with light fastness grade 3 is used in decorative textile printing, where moderate fastness provides resistance to color fading under indoor lighting conditions. Melting Point 210°C: Direct Congo Red 4BE with a melting point of 210°C is used in high-temperature dyeing processes, where thermal stability allows use in steaming or hot bath operations. Residual Moisture <2%: Direct Congo Red 4BE with residual moisture less than 2% is used in dry powder formulations, where low moisture content maximizes shelf-life and storage stability. |
Competitive Direct Congo Red 4BE 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
Flexible payment, competitive price, premium service - Inquire now!
