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HS Code |
167146 |
| Product Name | Reactive Yellow K-4G |
| C I Name | Reactive Yellow 145 |
| C I Number | 200705 |
| Cas Number | 93050-80-7 |
| Chemical Class | Reactive dye |
| Appearance | Yellow powder or granules |
| Shade | Bright yellow |
| Solubility | Easily soluble in water |
| Molecular Formula | C28H20ClN9Na4O16S5 |
| Application | Textile dyeing (cellulosic fibers) |
| Ionic Nature | Anionic |
| Stability | Good stability in alkaline condition |
| Ph Value | Suitable for dyeing at pH 10-11 |
| Fastness | Good washing and light fastness |
| Uses | Primarily for cotton, viscose, and blends |
As an accredited Reactive Yellow K-4G factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Reactive Yellow K-4G is typically packaged in a 25 kg fiber drum with inner plastic lining, labeled with product and safety information. |
| Shipping | Reactive Yellow K-4G is shipped in tightly sealed, moisture-proof containers to prevent contamination and degradation. Containers are clearly labeled with hazard and handling information. Shipment complies with chemical transport regulations, ensuring safe handling during transit. Store in a cool, dry area, away from direct sunlight and incompatible substances. |
| Storage | Reactive Yellow K-4G should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep the container tightly closed and away from incompatible substances such as strong oxidizers. Proper labeling and secure storage minimize risks of spillage and contamination. Use suitable personal protective equipment when handling to avoid skin or eye contact. |
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Purity 98%: Reactive Yellow K-4G with 98% purity is used in cotton fabric dyeing, where it ensures high color strength and uniform shade distribution. Stability Temperature 80°C: Reactive Yellow K-4G with a stability temperature of 80°C is used in continuous dyeing processes, where it delivers excellent heat resistance and prevents color fading. Solubility 40 g/L: Reactive Yellow K-4G with a solubility of 40 g/L is used in textile printing, where it provides rapid dissolution and minimizes undissolved residue in paste preparations. Molecular Weight 870 g/mol: Reactive Yellow K-4G of molecular weight 870 g/mol is used in direct dye application, where it facilitates predictable fixation rates and consistent dye uptake. pH Stability 5-8: Reactive Yellow K-4G with pH stability between 5 and 8 is used in dye baths, where it maintains dye integrity and reduces the risk of hydrolysis. Light Fastness Grade 5: Reactive Yellow K-4G with light fastness grade 5 is used in apparel manufacturing, where it imparts superior resistance to fading under sunlight exposure. Exhaustion Rate 85%: Reactive Yellow K-4G with an exhaustion rate of 85% is used in batch dyeing, where it improves dye utilization and minimizes wastewater color load. Particle Size ≤45 μm: Reactive Yellow K-4G with particle size not exceeding 45 micrometers is used in automated dye dosing systems, where it prevents clogging and enables smooth dispersion. |
Competitive Reactive Yellow K-4G 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!
