| Product Category | Fluorescent brightener-Plastic fluorescent brightener | |
| Product Name | Fluorescent brightener KSN | |
| Chemical Name | 4.4-Bis(5-methyl-2-benzoxazolyl)stilbene | |
| CAS No. | 5242-49-9 | |
| C.I. No. | 368 | |
| Molecular Formula | C₃oH₂2N₂O₂ | |
| Molecular Weight | 442 | |
| Performance and characteristics | 1. Small dosage, high whitening intensity, very good whitening effect can be produced with a small dosage. 2. Widely applicable, widely used in whitening of chemical fibers such as polyester and various plastics. 3. Good compatibility with plastics, high temperature resistance and excellent sun and weather resistance. |
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| Scope of application | 1. Suitable for whitening polyester, polyamide, polyacrylonitrile and other fibers and silk and wool fabrics. 2. Widely used in film, injection molding and extrusion molding materials, suitable for processing of all plastics. 3. Very suitable for whitening of synthetic polymers at any processing stage, including the polymerization stage. |
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| Application Method | Recommended dosage: Add 2-30g of KSN whitening agent per 100kg of material. 1. The amount added to transparent plastic is 0.5~2g. 2. The amount added to polyester fiber is 10~20g. |
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| Packaging and storage | 2kg×5 cartons, lined with plastic bags or packed as required by users, stored in a cool, dry place away from light. | |
| Technical conditions (technical indicators) | Appearance | Yellow powder |
| Melting point | 269-271℃ | |
| Ash content | 0.5% | |
| Content | ≥99% | |
| Volatile matter | 0.5% | |
| Fineness | larger than 100 mesh | |
| Precautions | 1. This product information is for reference, research and identification only. Our company does not assume any responsibility or patent disputes caused by it. 2. If you have any technical or usage questions, please contact our company in time. | |
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