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Powder ISO9001 99% Optical Brightening Agents OB-1 CAS No 1533-45-5
Product Details
Mat no.10010002 Fluorescent Brightener OB-1 CAS No.1533-45-5 yellow-green powder Purity≥99%
| Melting point | >300 °C(lit.) |
| Boiling point | 533.34°C (rough estimate) |
| density | 1.2151 (rough estimate) |
| Acidity coefficient (pKa) | 1.45±0.10(Predicted) |
| Chemical nature |
Fluorescent brightener OB-1,2,2-(4,4-Distyryl)bisbenzoxazole, yellow crystal, melting point 359-362℃, insoluble in water, odorless, stable performance, maximum absorption The spectral wavelength is 374nm, with strong fluorescence, and the fluorescence emission wavelength is 434nm. The optical brightener OB-1 is an efficient optical brightener for polyester fibers. It is also widely used in ABS, PS, HIPS, PC, PP, PE, EVA and rigid PVC and other plastics. Brightening effect, excellent thermal stability, very small addition and other characteristics. Fluorescent whitening agent can absorb invisible ultraviolet light (wavelength range is about 360-380 nm), and convert it into longer-wavelength blue or violet visible light, so it can compensate for the undesirable yellowish color in the matrix, and reflect more The original incident wavelength is more visible light in the range of 400-600 nm, which makes the product appear whiter, brighter and more vivid.
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| use |
Used for whitening of polyester stock solution, especially suitable for whitening of polyester fiber and whitening of polyester, cotton and other blended fabrics, and also for whitening of plastic products. |
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