Optical Brightener KCB is bright yellow powder with melting point 212℃, it is insoluble in water and the maximum absorption wave length is 370nm. It has very high stability and very excellent weather resistance and migration resistance, so it is very popular and very widely used in Plastic, Coating, Painting, Ink, Copolymer, Synthetic fiber, Polyester fiber etc.
Optical Brightener KCB Pure Powder 98.5%min with CAS No 5089-22-5.
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