| Name | parameter |
| appearance | Bright yellow green crystalline powder |
| melting point | 355∽360℃ |
| Solubility | Insoluble in water, soluble in high boiling organic solvents such as benzene dioxide |
| purity | ≥98.5％ |
| package | 2kg/bag，20kg/box |
OB-1 fluorescent whitening agent has two colors, yellow and green, and is commonly found in green. It has no difference in whitening and brightening effects and is cost-effective. It is widely used for whitening and brightening PVC plastic products, color masterbatch, polyester fibers, paints, coatings and other products
