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Powder 98% Moltec Fluorescent Brightener KS-N CAS No 5242-49-9
Product Details
Mat no.10010010 Fluorescent Brightener KS-N CAS No.5242-49-9 Yellow green Powder Purity≥98%
| English synonyms | 4-(Benzoxazol-2-yl)-4'-(5-methylbenzoxazol-2-yl)stilbene;2-[4-[2-[4-(Benzoxazol-2-yl)phenyl]vinyl]phenyl]-5-methylbenzoxazol;2-{4-{2-[4-(2-Benzoxazolyl)-phenyl]-vinyl}-phenyl}-5-methylbenzoxazole; 4-BIS(5-METHYL-2-BENZIAZOLYL)ETHLENE,99.5+%;OPTICAL BRIGHTENER 368;FBA 368;Optical Brightener KSN;KSNFluorescent Brightener |
| CAS No. | 5242-49-9 |
| Molecular formula | C29H20N2O2 |
| Molecular weight | 428.48 |
| EINECS number | 226-044-2 |
| Melting point | 269-271°C |
| Boiling point | 578.9±39.0 °C(Predicted) |
| density | 1.26 |
| Storage conditions | Sealed in dry, 2-8°C |
| Acidity coefficient (pKa) | 2.65±0.10(Predicted) |
| Chemical nature |
The whitening effect of fluorescent brightener KSN is very good. It enjoys the reputation of whitening king in China. It is often used in high-end plastics with high whiteness requirements. Appearance: yellow green crystalline chemicalbook powder melting point: 269-271 ℃, volatile matter: ≤ 0.5%, content: ≥ 98%, fineness: more than 100 mesh, insoluble in water, odorless, stable performance.
Fluorescent brightener KSN is a benzozole compound. It is an excellent upgrading product among many fluorescent brighteners at present. It has blue and purple color and excellent light resistance. It is suitable for all plastics, especially in synthetic fibers. Chemicalbook has a strong whitening effect. At the same time, it can also be used to whiten and brighten color materials in coating, paint, ink and other industries. Fluorescent brightener KSN has the characteristics of convenient application, minimum dosage and best effect. |
| Use |
Fluorescent brightener KSN has similar chemical structure to OB-1, but its whitening effect on polyester fiber and plastic products is better than OB-1, and its compatibility with plastics is better than OB-1. A small amount of chemical book can produce a very good whitening effect, which is far less than OB-1. KSN not only has excellent high temperature resistance, but also has excellent sun and climate resistance. Fluorescent brightener KSN is also suitable for polyamide and polypropylene |
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