C.I.:220 CAS NO.:16470-24-9 Appearance: Light yellow powder Purpose: 1 Used for whitening cotton fibers and viscose fibers. 2. Suitable for adding to whitening printing paste. 3. Perform fluorescent whitening in pulp. 4. Perform fluorescent whitening during the surface coating process. 5. Perform fluorescent whitening during the coating process. Packaging: 25KG cardboard drum or paper plastic composite bag packaging.