Optical Brightener 4BK(87), CAS 12768-91-1
Fluorescent Brightener 87(FBA 87), Fluorescent Brightener 4BK
Appearance: Slight yellow uniform powder
Shade: Slight bluish
Fineness(120 mesh residue):≤5%
>Optical Brightener 4BK is used in whitening cotton fabric and polyester/cotton blends.
Handing and Safety:
>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet.
Corrugated paper box with a liner of plastic bag.The net weight of each box is 10 kg. Or according to customers’ requirements.