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Fluorescent brightener KCB CAS 5089-22-5
Chemical name:1,4-BIS-BENZOXAZOLYL-NAPHTHALENE
Synonymous names: FBA 367
Fluorescent brightener 367;
C.I.367
CAS No:5089-22-5
Molecular formula:C24H14O2N2
Content:≥99.5%
Molecular weight:363
Appearance:Yellow-green powder, blue to bright white light
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Structural formula：
Product Description：
| Appearance | Solid |
| Yellow-green powder, blue to bright white light | |
| Fineness (mass fraction of residue passing through 120μm aperture sieve)/% | 5 |
| Moisture mass fraction/% | 5.0 |
| Color light | bright blue and bright white light (similar to standard product) |
| Maximum absorption wavelength | 375nm |
| Mass fraction of water-insoluble matter/% | 0.5 |
Properties and Usage:
Fluorescent brightener KCB is a brightener specially designed for synthetic fibers and plastic products. Its excellent performance makes it very popular in the industry. Has significant whitening effect and gorgeous brightening effect
It is widely used for whitening synthetic fibers and plastic products. Whether it is polyolefin, PVC, foamed PVC, TPR, EVA or PU foam, it can achieve excellent whitening effects. Especially for foamed plastics, such as EVA and PE foam, the whitening effect is particularly significant, making the product appear white and bright.
Secondly, it is also suitable for whitening plastic films, lamination molding materials, injection molding materials, etc. Not only that, it can also be used to whiten polyester fibers and plays an important role in the preparation of dyes and natural lacquers.
Packaging specifications:
25kg/barrel cardboard drum; dry storage
